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Hugo Reinhardt27/06/2026, 10:00
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Prof. Sandra Klevansky (Heidelberg University)27/06/2026, 11:30
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Hugo Reinhardt27/06/2026, 13:30
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Sandra Klevansky (Heidelberg University)27/06/2026, 14:30
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Krzysztof Graczyk (University of Wrocław)27/06/2026, 16:00
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Hugo Reinhardt27/06/2026, 17:00
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Sandra Klevansky (Heidelberg University)27/06/2026, 18:00
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Krzysztof Graczyk (University of Wrocław)28/06/2026, 09:00
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Krzysztof Graczyk (University of Wrocław)28/06/2026, 10:00
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Andreas Schmitt (University of Southampton)28/06/2026, 11:30
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Andreas Schmitt (University of Southampton)28/06/2026, 13:30
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Andreas Schmitt (University of Southampton)28/06/2026, 14:30
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Susan Gardner (University of Kentucky)28/06/2026, 16:00
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Susan Gardner (University of Kentucky)28/06/2026, 16:50
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Susan Gardner (University of Kentucky)28/06/2026, 17:40
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Malgorzata Anna Janik (Warsaw University of Technology (PL))28/06/2026, 18:30
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Robert Olkiewicz29/06/2026, 09:15Talk
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Tomasz Janos29/06/2026, 09:25Talk
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Krzysztof Redlich29/06/2026, 09:35Talk
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David Blaschke29/06/2026, 09:45Talk
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Anthony Robert Timmins (University of Houston (US))29/06/2026, 10:00
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Prof. Kenji Fukushima (The University of Tokyo)29/06/2026, 11:00
I will review recent developments in research on the QCD phase diagram, with an emphasis on two directions.
Even at zero or small baryon densities, the QCD phase diagram has not been fully understood. There is accumulating direct and indirect evidence to show that a nontrivial window above the pseudo-critical temperature exists where nonperturbative phenomena persist. The evidence implies...
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Peter Vander Griend29/06/2026, 11:30
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Anthony Robert Timmins (University of Houston (US)), Derek Teaney, Hanna Zbroszczyk (Warsaw University of Technology (PL)), Prof. Kenji Fukushima (The University of Tokyo), Nu Xu, Szabolcs Istvan Borsanyi29/06/2026, 12:00Deconfinement
Chair: Derek Teaney (TBC)
Panellists:
Anthony Timmins
Hanna Zbroszczyk
Nu Xu
Szabolcs Borsanyi (TBC)
Kenji Fukushima (TBC)Questions to discuss during the RT:
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- What are the most important unanswered questions in heavy-ion physics for the next 10–20 years?
- Which current “standard assumptions” about the quark–gluon plasma do you think are most likely to be revised?
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Michael Buballa (TU Darmstadt)29/06/2026, 14:00
The Nambu–Jona-Lasinio (NJL) model and particularly its extension to color superconductivity is a powerful framework for explorative studies of dense, but not asymptotically dense quark matter. However, its reliability is limited by regularization artifacts that emerge near the cutoff energy scale. Unfortunately, this already affects the phenomenologically most interesting density regime,...
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Min-Huan Chu (Adam Mickiewicz University)29/06/2026, 14:00
We propose a framework for the reconstruction of parton distribution functions (PDFs) and generalized parton distributions (GPDs) from lattice QCD, utilizing artificial neural networks (ANNs). Our approach combines two complementary methodologies: the Large Momentum Effective Theory (LaMET) and the short-distance operator expansion (SDE). To determine ANN-based PDFs and GPDs, we achieve a...
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Miguel Salg29/06/2026, 14:00
We present preliminary results on the isospin-0 $\pi\pi$ scattering amplitude determined from lattice QCD at a pion mass of 280 MeV and a single lattice spacing of about 0.064 fm. At around this pion mass, the $\sigma$/$f_0(500)$ meson transitions from being a virtual bound state to a resonance. In contrast to previous work, we use CLS ensembles on the $\mathop{\mathrm{tr}} M_q =...
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Tommaso Scirpa29/06/2026, 14:00
The impact of open-flavor thresholds on the quarkonium spectrum has been a subject of study since the introduction of the Cornell potential and has been quantified through various phenomenological approaches, most notably the $^3P_0$ model.
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We revisit this problem using the Born--Oppenheimer effective field theory (BOEFT), an effective field theory systematically derived from QCD by... -
Nu Xu29/06/2026, 14:00
In this talk, I plan to discuss recent progresses in the study of the QCD phase structure with correlation, collectivity and fluctuation measurements in high-energy nuclear collisions at the Relativistic Heavy Ion Collider. Future studies, especially including the spin degrees of freedom at the newly constructed facilities, will be addressed.
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Felix Ringer (Stony Brook University)29/06/2026, 14:00
Quantum simulations provide a promising approach to studying strongly coupled quantum field theories relevant to confinement and non-perturbative dynamics. I will present recent progress leveraging a hybrid discrete (qubit) and continuous (qumode) approach, where fermionic matter is encoded in qubits while bosonic gauge and scalar fields are represented by qumodes. This approach enables...
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Prof. Anders Garritt Knospe (Lehigh University)29/06/2026, 14:00
The sPHENIX detector was designed to study the matter produced in ultrarelativistic ion-ion collisions, with excellent capabilities for reconstructing jet and heavy-flavor observables. The experiment recently completed its successful 2023-2026 data taking run with a large set of Au+Au, $p$+$p$, and O+O collision data. This presentation will highlight the early results from sPHENIX, including...
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Erich Poppitz29/06/2026, 14:00
We study super-Yang-Mills theory with a small supersymmetry-breaking mass, on a four-torus with ’t Hooft twists, in the semiclassical regime. We argue that in order to have continuity between the small- and large-volume results, it is crucial to define the partition function as a sum over all twisted sectors. We compute the scalar and pseudoscalar condensates and show agreement between the...
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Dr Jorge Baeza Ballesteros (Deutsches Elektronen-Synchrotron Zeuthen)29/06/2026, 14:30
The study of baryon-baryon interactions from lattice QCD at near-physical pion masses is limited by the presence of one-pion exchange (OPE) effects, which lie beyond the applicability range of Lüscher's quantization condition. To overcome this limitation, several extensions of the formalism have been proposed in recent years, which consistently incorporate OPE effects. In this talk, I present...
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Fabian Zierler (Technical University of Munich)29/06/2026, 14:30
Theories of Physics Beyond the Standard Model that exhibit a first-order phase transition are potentially detectable via gravitational waves. The existence of such phase transitions is well established in the deconfinement phase-transition of pure gauge theories with a sufficiently large gauge group. However, the calculation of the properties describing such a transition such as the latent...
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JAUME TARRUS CASTELLA (Universitat Pompeu Fabra)29/06/2026, 14:30
Born–Oppenheimer EFT (BOEFT) provides a systematic framework to describe exotic double-heavy hadrons, built on the nonrelativistic expansion of the heavy quarks and the adiabatic separation of scales between heavy and light degrees of freedom. As exotic states lie near heavy-meson–antimeson thresholds and other continuum states, an important question is how to consistently incorporate them...
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Prof. Jeff Greensite (San Francisco State University)29/06/2026, 14:30
I point out that electrically charged physical states in SU(2)xU(1) gauge Higgs theory can be constructed in two different ways, with the resulting states mutually orthogonal, and a similar statement holds for neutral states. In the spectrum of a static charged vector-like fermion in an SU(2)xU(1) gauge Higgs theory, derived from a numerical study of time correlators, there are indications...
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Orestis Papadopoulos (University of Southampton)29/06/2026, 14:30
Anisotropic phases are hypothesised to play a role in the small temperature and large chemical potential regime of the QCD phase diagram, making their existence in the core of neutron stars a concrete possibility. I will present the study of such a phase, the chiral density wave (CDW), defined as an anistropic chiral condensate. The nuclear CDW is firstly studied within a nucleon-meson model,...
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Krzysztof Piasecki (University of Warsaw)29/06/2026, 14:30
Heavy-ion collisions at a few AGeV give insight into the intriguing hot and dense region of QCD diagram. In this region, the basic properties of hadrons, like mass or branching ratios may be modified with respect to the values in vacuum.
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With rising beam energy, the production of many hadrons increases from rare to abundant. It gives a chance to obtain a differential picture of created... -
Qi-An Zhang29/06/2026, 14:30
In this talk, I will give a brief overview of the Lattice Parton Collaboration’s recent lattice QCD studies of TMD observables within the Large Momentum Effective Theory (LaMET) framework. The presentation will cover first-principles determinations of the soft function, the Collins–Soper evolution kernel, as well as several key TMD parton distributions, including the unpolarized and helicity...
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Pablo Navarrete (University of Helsinki)29/06/2026, 14:30
Determining the QCD pressure at high temperature and density is essential for understanding matter in extreme environments. In perturbation theory, the infrared problems plaguing the weak-coupling expansion have been largely resolved within the framework of effective field theory, enabling the computation to reach order g^6 in the gauge coupling g. Despite decades of effort, bringing this task...
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Maja Mackowiak-Pawlowska (Warsaw University of Technology (PL))29/06/2026, 15:00
The contribution will present recent highlights from the NA61/SHINE experiment at the CERN SPS. Owing to its broad phase-space coverage and the lack of a low-$p_T$ cut-off for charged particles, NA61/SHINE provides unique opportunities for studies of hadron production and fluctuations in strongly interacting matter. Recent measurements of particle spectra, yields, correlations, and...
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Hugo Reinhardt, Prof. Hugo Reinhardt29/06/2026, 15:00
Inspired by the center-vortex dominance in the infrared sector of SU(N)-Yang-Mills theory observed on the lattice, a vacuum wave functional is proposed, which is localised on an ensemble of correlated center vortices endowed with stiffness and magnetic monopoles that change the orientation of the vortex flux. Exploiting techniques from polymere physics this wave functional is transformed in...
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Roberto Bruschini (Technische Universität München)29/06/2026, 15:00
For more than 20 years, theorists have debated the pattern of the exotic hidden-heavy hadrons. In this talk, I describe a simple solution to this longstanding puzzle using the Born-Oppenheimer approximation for QCD [1]. Exotic hidden-heavy hadrons are bound states or resonances in potentials that are repulsive at short range, have a minimum at intermediate range, and approach the threshold for...
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Mr Mu-Hua Zhang (Shanghai Jiao Tong University)29/06/2026, 15:00
We present the first lattice QCD calculation of all components of the leading-twist light-cone distribution amplitudes (LCDAs) of baryons at the physical pion mass and in the continuum limit, within the Large-Momentum Effective Theory (LaMET) framework.
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This work provides a systematic first-principles calculation of baryon LCDAs beyond moment-based approaches, enabling direct access to their... -
Gastao Krein29/06/2026, 15:00
The phase structure of Quantum Chromodynamics (QCD) at finite baryon density remains one of the central open problems in modern nuclear physics. Recent theoretical advancements have highlighted the presence of so-called moat regimes in dense quark matter, characterized by nonmonotonic mesonic correlation functions with global minima at nonzero spatial momentum, signaling potential...
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Hagop Sazdjian (Paris-Saclay University, IJCLab)29/06/2026, 15:00
Two-quark--two-antiquark systems are considered in the framework of two-dimensional QCD, in the light-cone gauge, at leading orders of the $1/N_c^{}$ expansion. Integral equations are established for the Green's functions of mesonic clusters and the related scattering amplitudes involved in the sectors of the direct and quark-exchange channels. The problem of infrared divergences is dealt with...
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Jun Hua29/06/2026, 15:20
The lattice QCD computation of parton distributions within the framework of large momentum effective theory (LaMET) constitutes a first-principles approach to studying hadron structures. Building upon preceding studies, we have developed and partly implemented lattice methodologies for calculating the leading twist LCDAs of light baryons under the LaMET formalism over the past few years. In...
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Fernando Romero Lopez29/06/2026, 15:20
The study of three-hadron systems is a current frontier in lattice QCD spectroscopy, aiming to investigate few-hadron dynamics and three-body resonances, including exotic hadrons. In this talk, I will summarize recent developments in the finite-volume formalism for studying three-hadron scattering in lattice QCD. Specifically, I will focus on recent work outlining a strategy to study $N\pi\pi$...
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Urko Reinosa (CPHT - Ecole Polytechnique - CNRS)29/06/2026, 15:20
Lattice simulations point to the fact that the low- and high-temperature regimes of QCD are controlled by distinct active degrees of freedom, hadrons on the one side, and quarks and gluons on the other side. Yet, many continuum studies of the confinement/deconfinement transition rely on the Polyakov loop which measures how energetically costly it is to bring an external quark probe into a bath...
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Prof. Lorenz von Smekal29/06/2026, 15:30
We have constructed a gauge-invariant measure for deconfinement based on the percolation of electric center fluxes in full lattice QCD, to describe the associated geometric phase transition without a thermodynamic singularity. Our percolation measure reduces to 't Hooft's electric fluxes for the Z_N center-symmetry transition in the pure SU(N) gauge theory. In the corresponding Z_N-spin...
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Bernd-Jochen Schaefer29/06/2026, 15:30
Astrophysical observations of massive neutron stars and compact-object mergers increasingly point to the presence of deconfined quark matter at high densities. In such environments, quarks are expected to form color-superconducting diquark pairs. Their properties are typically modeled within effective theories, where parameter fixing remains challenging due to the absence of diquarks as...
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Fang-Zheng Peng29/06/2026, 15:30
We present a unified coupled-channel study of heavy quarkonium and tetraquark configurations within the Born--Oppenheimer effective field theory, employing lattice-QCD static potentials and open-flavor meson--antimeson thresholds as explicit degrees of freedom. With the adjoint-meson mass fixed from the $X(3872)$, we solve the coupled Schrödinger equations in the isoscalar sector from the...
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Elizaveta Zherebtsova (University of Wroclaw (PL))29/06/2026, 15:40
The NA61/SHINE experiment at the CERN Super Proton Synchrotron (SPS) investigates the properties of strongly interacting matter over a wide range of collision energies and system sizes. A central goal of this program is to study the onset of deconfinement and the phase structure of strongly interacting matter.
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In this contribution, recent results on identified hadron production are presented,... -
Manuel Colaço (Adam Mickiewicz University)29/06/2026, 15:40
This talk presents an extraction of Mellin moments of the proton unpolarized generalized parton distributions (GPDs) at nonzero skewness from lattice QCD. The analysis builds on the recent studies of GPDs at nonzero skewness, which, together with the polynomiality relations and short-distance factorization matching, connect the moments to generalized form factors. The present method uses...
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Dr Carlo Trugenberger (New York University Abu Dhabi)29/06/2026, 16:30Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
I will show that compact QED with a topological θ-term in the dyon condensation phase is a string theory with an infrared Brazovskii-Lifshitz fixed point at strong coupling. This corresponds to a fundamental infrared “free string” in (3+1) dimensions, representing the mirror of ultraviolet asymptotic freedom. Contrary to critical strings, this fundamental confining string is stabilized by a...
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Giulio Cianti (Sapienza University of Rome & Istituto Nazionale di Fisica Nucleare)29/06/2026, 16:30
Near-threshold bound states are naturally described within effective field theory in terms of a small set of low-energy observables, independently of the short-distance details of their dynamics. In this talk, I discuss an EFT model with an explicit auxiliary field as a simple and transparent framework to describe shallow molecular states. I first show how the formalism reproduces the basic...
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Risto Paatelainen29/06/2026, 16:30
The non-leptonic weak process $u + d \leftrightarrow u + s$ plays a central role in dense quark matter, with its microscopic rate controlling an important contribution to the bulk viscosity relevant for neutron-star merger dynamics. This rate arises from a subtle interplay between QCD and the electroweak sector of the Standard Model. Existing estimates rely on tree-level calculations performed...
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Amy Schertz29/06/2026, 16:30
The search for hybrid mesons, which have gluonic contributions to their wavefunctions, is the major impetus behind the GlueX experiment, located at Jefferson Lab in Virginia, USA. The GlueX experiment uses a linearly polarized photon beam on a liquid hydrogen target, surrounded by a nearly hermetic detector apparatus allowing for exclusive reconstruction of final states. The linear...
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Bhavna Prasad (The Cyprus Institute)29/06/2026, 16:30
We present a lattice QCD determination of the electromagnetic form factors of the proton and neutron, as well as the strange quark contributions to the nucleon electromagnetic form factors. We employ twisted-mass fermion ensembles with two degenerate light quarks, a strange quark, and a charm quark with masses tuned to their physical values. Studying the momentum-transfer dependence of the...
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Lorenzo Mattei (Université Clermont Auvergne (FR) / Università di Torino (IT))29/06/2026, 16:30
Quarkonium production has long been identified as one of the golden probes to study the quark-gluon plasma (QGP), a state of matter in which quarks and gluons are no longer confined inside hadrons.
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The early production of heavy quarks ($c\bar{c}$ and $b\bar{b}$) makes quarkonia an ideal tool to investigate the evolution of the hot and dense medium produced in ultra-relativistic heavy-ion... -
Dr Vadim Baru (Ruhr University Bochum)29/06/2026, 16:30
We discuss a low-energy EFT framework for coupled-channel heavy-meson--heavy-antimeson scattering and apply it to recent lattice QCD results for $D D^{*}$ and $B^{(*)} \bar D^{(*)}$ scattering in the context of the $T_{cc}$ and $T_{bc}$ states. The framework naturally incorporates both short-range contact interactions and the long-range one-pion exchange, thereby fully accounting for the...
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Dr JAMES,ALLAN INGOLDBY (IPPP, Durham University)29/06/2026, 16:30Statistical analysis, Machine Learning and Quantum ComputingTalk
I will present work in progress on the quantum simulation of false
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vacuum decay in the O’Brien–Fendley lattice spin chain. This process
describes the decay of a higher-energy phase via quantum tunnelling,
leading to the formation and expansion of “bubbles” of a lower-energy
phase. We simulate these dynamics using Suzuki–Trotter decompositions of
the time evolution operator, implemented on... -
Dr Andrea Carducci (Sapienza Università di Roma & Istituto Nazionale di Fisica Nucleare)29/06/2026, 16:50
Since its observation in 2003, the $X(3872)$ has stood out as one of the most puzzling exotic states in QCD, displaying properties that continue to challenge standard theoretical interpretations. In this presentation, I will address a particularly striking aspect of this state: the sizable isospin violation exhibited in its decays to $J/\psi\rho^0$ and $J/\psi\omega$. Despite being...
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Manato Sakai (Nagoya University)29/06/2026, 16:50
The doubly charmed tetraquark $T_{cc}$, reported by the LHCb experiment in 2022, is widely interpreted as a $DD^\ast$ molecular state due to its small binding energy near the $D^{\ast +}D^0$ threshold.
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Based on superflavor symmetry, which relates heavy antiquarks to heavy diquarks, partner exotic hadrons can be predicted by replacing $\bar{D}^{(*)}$ with $\Xi_{cc}^{(*)}$. This suggests that... -
Eduardo Fraga (Instituto de Física, Universidade Federal do Rio de Janeiro)29/06/2026, 17:00
We investigate the thermal evolution of quark stars with and without a hadronic crust using an equation of state derived from perturbative QCD that incorporates the running of the strong coupling and the strange quark mass. Our analysis reveals that bare quark stars cool too rapidly to match the luminosity data, including those of the coldest observed isolated neutron stars, even when the...
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Jingqing Zhang (Nanjing Normal University (CN))29/06/2026, 17:00
BESIII has made lots of progress on light hadron spectroscopy. Using
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J/psi radiative decays, we study the properties of η(1405) and f1(1420)
in J/psi ->gamma 3pi0. Amplitude analyses of J/psi->gamma KsKs and
psi(2S)->phi eta eta’ are performed, where an axial-vector state is
observed. In addition, we report the observation of psi(2S)->gamma
eta(1405) with eta(1405)->f0(980)pi0. These... -
Shinji Takeda29/06/2026, 17:00Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
We study the phase structure of the two-dimensional lattice CP(1) model with a θ term using the tensor renormalization group method, avoiding the sign problem. By improving the initial tensor construction with a quadrature method and analyzing conformal field theory quantities such as the central charge and scaling dimensions, we identify the onset of the critical region in the parameter space...
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Rasmus Larsen29/06/2026, 17:00
We present our new results on finite temperature relativistic charmonium states from lattice QCD using extended sources to project into specific states. We extract the position and width of the spectral function for $\eta _c(1S)$, $\eta _c(2S)$, $J/\psi(1S)$, $\psi(2S)$, $\chi _{c,0}(1P)$ and $\chi _{c,1}(1P)$ up to a temperature of 305MeV.
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Victor Martinez Fernandez (IRFU/CEA (France) and CFNS (USA))29/06/2026, 17:00
Quantum Chromodynamics (QCD) is the theoretical framework to study hadrons by means of their fundamental degrees of freedom, i.e. quarks and gluons, collectively referred to as partons. QCD defines many types of distributions describing a given hadron in terms of partons and, for the purposes of this talk, we are interested in the so-called generalized parton distributions (GPDs). These ones...
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Xenofon Chiotopoulos (Nikhef National institute for subatomic physics (NL))29/06/2026, 17:00Statistical analysis, Machine Learning and Quantum ComputingTalk
The transition to the High-Luminosity Large Hadron Collider (HL-LHC) presents a computational challenge where particle
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reconstruction complexity may outpace classical computing resources. While quantum computing offers potential speedups,
standard algorithms like Harrow-Hassidim-Lloyd (HHL) require prohibitive circuit depths for near-term hardware. Here, we
introduce the 1-Bit Quantum... -
Dr Sachiko Takeuchi (RCNP, University of Osaka)29/06/2026, 17:10
In 2020-2024, the LHCb, ATLAS, and CMS collaborations have reported peaks in the final $J/\psi$-$J/\psi$ invariant mass spectra [1-3]. The peaks are reported to be 2++ [4].
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We investigated scattering states of two heavy mesons, such as $J/\psi$-$J/\psi$, $\eta_c$-$J/\psi$, $\eta_c$-$\eta_c$, $\Upsilon$-$\Upsilon$, etc., using a simplified quark-cluster model. It is found that the Pauli... -
Davide Germani (Sapienza Università di Roma & Istituto Nazionale di Fisica Nucleare)29/06/2026, 17:10
The $X(3872)$ is traditionally classified as an isosinglet state, a quantum number assignment largely motivated by the lack of experimental evidence for charged partners. However, this interpretation faces significant challenges when confronted with recent phenomenological data. In this presentation, I will explore the possibility that the observed $X(3872)$ signal is not a single resonance,...
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Tomoya Uji (The University of Tokyo)29/06/2026, 17:30
Motivated by the upcoming Electron–Ion Collider, the three-dimensional structure of the nucleon has attracted renewed attention. A central role in this program is played by the energy–momentum tensor (EMT) form factors, which encode the momentum, angular momentum, and mechanical properties of the nucleon. In particular, the D-form factor is related to the pressure and shear-force...
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Andrea Sabatucci29/06/2026, 17:30
Binary neutron star mergers and proto-neutron stars provide unique environments where dense matter is hot, lepton rich, and potentially undergoes a transition from hadronic to deconfined quark matter. We investigate the thermodynamics and stellar properties of hybrid matter under such conditions. The hadronic phase is described within a covariant density functional framework, while the quark...
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Pietro Silvi29/06/2026, 17:30Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
We introduce a method for the selective preparation and detection of quasiparticle wave packets, based on creation operators that generate dressed, localized excitations on top of interacting vacua of (quasi-)one-dimensional quantum lattice theories. This method exploits maximally localized Wannier functions (MLWFs) constructed from quasiparticle bands at intermediate system sizes, enabling...
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Majid Ekhterachian (Scuola Normale Superiore, Pisa)29/06/2026, 17:30
I will discuss tetraquarks in large N QCD with heavy quarks, in the domain where non-relativistic quantum mechanics offers an adequate approximation. I will show how within the regime of validity of the Born-Oppenheimer approximation, we can systematically study and explicitly construct tetraquark states. At leading order in the 1/N expansion, the bound spectrum consists of free mesons, while...
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Tom Magorsch29/06/2026, 17:30
We present recent developments in the open quantum system treatment of quarkonium in the quark-gluon plasma. Studying the thermalization of bottomonium, we find that the system equilibrates to a steady state, which shows corrections to the thermal Gibbs state. While at leading order in an expansion in the binding energy over temperature, the steady state is qualitatively different from the...
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Alba Reyes-Torrecilla (Universidad Complutense de Madrid and IPARCOS)29/06/2026, 17:30
We utilize the universality of pion--pion ($\pi\pi$) final-state interactions at small invariant masses to understand the enhanced localized CP violation in $B^\pm\to K^\pm\pi^+\pi^-$, using a dispersive approach. From a fit to the integrated CP-asymmetry data, we successfully predict the Dalitz-plot kinematic distribution of the asymmetry in the low-energy $\pi\pi$ region, including the large...
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Maximilian Weber29/06/2026, 17:30
We investigate the $T_{cc}$ tetraquark, treating it as a bound state of a heavy diquark and a light antidiquark. Using the Silvestre-Brac potential and solving the Schrödinger equation via the Gaussian Expansion Method, we find that the excitation energy between the heavy diquark and light antidiquark is unexpectedly larger than that between the two light anti-quarks within the anti-diquark --...
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Nelson Pitanga Lachini (University of Cambridge)29/06/2026, 17:50
The experimental observation of the $T_{cc}^+$ has prompted significant theoretical work, including a number of lattice calculations. In parallel with these studies, it has been suggested that pion-exchange effects may contribute to the description of the $T_{cc}^+$. In this talk, we present an update on the analysis of the finite-volume spectrum computed by the HadSpec collaboration on...
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Mamiya Kawaguchi, Dr Mamiya Kawaguchi (Anhui University of Science and Technology)29/06/2026, 17:50
In the low-energy regime of QCD, spontaneous chiral symmetry breaking plays a crucial role in hadron dynamics. Within low-energy effective descriptions, this implies that the nucleon mass can be decomposed into chiral-variant and chiral-invariant components. However, their respective quantitative values have not been fully clarified. In this study, we investigate the chiral-invariant mass by...
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Yoshiki Tanaka (RIKEN)29/06/2026, 17:50
We performed missing-mass spectroscopy of the ${}^{12}$C($p$,$d$) reaction near the $\eta^\prime$-meson emission threshold to search for $\eta^\prime$-mesic nuclei — bound states of an $\eta^\prime$ meson and a nucleus — in order to investigate in-medium properties of the $\eta^\prime$ meson, which are closely related to the axial U(1) anomaly and chiral symmetry breaking in QCD. We conducted...
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Panayiotis Panayiotou (Technical University of Munich)29/06/2026, 17:50
I will outline a systematic description of medium induced modifications to quarkonium in a quark gluon plasma by making use of the Open Quantum Systems framework and effective field theories such as pNRQCD. These medium effects are encoded in a finite set of transport coefficients defined through real-time thermal chromoelectric correlators, which can be associated with analytically continued...
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Raphael Krueger (Ruhr University Bochum)29/06/2026, 17:50
We derive the hyperon-nucleon two-meson exchange potential with intermediate decuplet baryon excitations in the framework of chiral effective field theory. Unlike existing calculations, we account for SU(3) symmetry breaking effects stemming not only from different meson masses, but also from different SU(3) octet and decuplet baryon masses. The resulting SU(3) breaking potentials exhibit...
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Jorge Gamboa (Universidad De Santiago de Chile)29/06/2026, 18:001Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
In this talk, I will describe the adiabatic (Born–Oppenheimer–Berry) approximation as a conceptual and computational framework for investigating the infrared sector of Quantum Chromodynamics (QCD). By separating slow gauge-field configurations from fast dynamical degrees of freedom, this approach naturally leads to the emergence of geometric phases and functional Berry connections that encode...
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Aaron Park (Yonsei University)29/06/2026, 18:10
In this work, we investigate heavy baryon–antibaryon systems, including the $\Lambda_c \overline{\Lambda}_c$, within the framework of the constituent quark model. Using a Hamiltonian that incorporates color–color and color–spin interactions, we find that, while the nucleon–antinucleon system already exhibits the possibility of forming a compact bound state, the inclusion of heavy quarks...
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Shuo Fang (TUM)29/06/2026, 18:10
We investigated the in-medium spin transport of bottomonium based on open quantum system approach with potential NRQCD interaction. We derived a Boltzmann equation describing the evolution of spin degrees of freedom and calculated the spin observables. We observe that the spin polarization of heavy quarkonium comes from its relative motion to the medium and the EE, EB, BB correlators coming...
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Roman Zwicky (Edinburgh University)29/06/2026, 18:10
I explore the possibility that QCD with massless quarks may be described
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by a infrared fixed point, where the light scalar sigma meson can be interpreted as a dilaton - the (pseudo-)Goldstone boson of spontaneously broken scale invariance. Under this assumption, scaling dimensions are determined by matching to low-energy pion observables, obtaining results consistent with phenomenology and... -
Balma Duch (Institut de Física d'Altes Energies (IFAE))29/06/2026, 18:10
We present a method for exploring the presence of noise, which may mimic systematic errors in experimental datasets, particularly when such errors introduce inconsistencies. The method is based on Padé Approximants designed for Stieltjes functions, with extensions to holomorphic functions in the region covered by the data. It uses the known analytic properties of these functions to identify...
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Prof. Iain Stewart30/06/2026, 09:00
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Muneto Nitta (Keio University), Muneto Nitta (Keio University / WPI-SKCM2 at Hiroshima U.)30/06/2026, 09:30Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
In recent years, quantum anomalies have been recognized as a powerful mechanism for generating and stabilizing nontrivial ground states in QCD under extreme conditions. In this talk, I discuss a variety of anomaly-protected solitonic ground states appearing in dense hadronic and quark matter, including chiral soliton lattices, domain walls, Skyrmionic excitations, and their composites with...
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Jad C. Halimeh30/06/2026, 10:00Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
We will showcase the latest quantum simulation experiments of confinement physics on state-of-the-art superconducting-qubit and trapped-ion quantum computers. We will discuss confinement phenomenology relevant to both condensed matter and high-energy physics in $d+1$ dimensions. We will outline the path forward towards connecting such quantum simulation results to particle collider data.
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Prof. Martha Constantinou30/06/2026, 11:00
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Anna Stasto30/06/2026, 11:30
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Alberto Ramos Martinez (Univ. of Valencia and CSIC (ES))30/06/2026, 12:00
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Ani Aprahamian30/06/2026, 12:30
The periodic table of elements is now full up to the Z=118, element, Oganesson, the last element in the noble gas column of elements. The table contains elements that were in time identified by fission and by nuclear reactions. Some of them were deliberately created in the laboratory while others were sought after after weapons tests to reach the superheavy elements or rather the predicted...
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Prof. Zhi Yang30/06/2026, 14:00
Understanding the nature of exotic hadrons and the internal structure of near-threshold states remains a major challenge in quantum chromodynamics (QCD). We developed a unified framework combining the Godfrey-Isgur relativized quark model, Hamiltonian effective field theory, and finite-volume lattice QCD inputs to systematically study the properties of both conventional and exotic...
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Christoph Gärtlein30/06/2026, 14:00
We study color superconductivity in quarkyonic matter under conditions of color and electric neutrality in β-equilibrium, with relevance for the dense interior of neutron stars. Extending the quarkyonic framework, we incorporate a color-superconducting pairing gap with a momentum dependence motivated by the running of the QCD coupling and nonlocal quark interactions.
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The momentum dependence... -
Hanna Zbroszczyk (Warsaw University of Technology (PL))30/06/2026, 14:00
Femtoscopy is a well-established tool for investigating the space-time properties of particle-emitting sources created in hadronic and heavy-ion collisions, as well as for studying hadron-hadron interactions in the final state. At beam energies of a few GeV per nucleon, accessible with the HADES experiment at SIS18, femtoscopy provides unique access to the high net-baryon density region of the...
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Mikolaj Krzysztof Misiak (University of Warsaw (PL))30/06/2026, 14:00
The weak radiative $B$-meson decay is well known to be a sensitive probe of beyond-SM physics. In the SM, the dominant contributions to its branching ratio originate from one-loop diagrams with $W$-bosons and up-type quarks. The current SM prediction ${\mathcal B}(B \to X_s \gamma)^{\rm SM} = (3.54 \pm 0.14) \times 10^{-4}$ for $E_\gamma > 1.6\,{\rm GeV}$ is in good agreement with the...
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Konstantin Matchev (University of Alabama (US))30/06/2026, 14:00Statistical analysis, Machine Learning and Quantum ComputingTalk
This talk will review a few selected applications of quantum machine learning and quantum resource theory to typical problems and tasks arising in the analysis of high energy physics data.
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Gerrit Schierholz (DESY)30/06/2026, 14:00
Confinement and the CP problem require nonperturbative techniques for analysis. The renormalization group flow is the primary tool for explaining how a theory can become trapped or confined at low energies. In this talk I present a solution that connects infrared confinement to the strong CP problem
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Prof. Liping Gan (University of North Carolina Wilmington)30/06/2026, 14:00
The decays of the light pseudoscalar mesons π0, η and η′ offer a flavor-conserving laboratory to test the low-energy QCD and to search for new physics Beyond the Standard Model. The QCD symmetries and symmetry breakings at low-energy, such as the chiral symmetry or the axial anomalies, are manifested in their most unambiguous form in the sector of light pseudoscalar mesons. Experimental...
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Ignasi Rosell (Universidad CEU Cardenal Herrera)30/06/2026, 14:00
The LHC has established a clear mass gap between the Standard Model particles and possible new states, making effective field theory the natural framework to search for indirect signals of new physics. We adopt the HEFT, the electroweak effective theory in its nonlinear realization, where the Higgs is treated as a singlet with independent couplings. At higher energies we describe possible...
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Marcin Kucharczyk (Polish Academy of Sciences (PL))30/06/2026, 14:20
The results on two- and three-pion Bose-Einstein correlations measured with the sample of proton-proton and proton-lead collisions recorded at LHCb will be presented. This includes the first study of three-particle Bose-Einstein correlations measured in the forward region provided by the LHCb detector. The results are interpreted within the core-halo model for the first time in proton-proton...
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Prof. Hideko Nagahiro (Nara Women's University)30/06/2026, 14:30
Recently the LHCb collaboration observed five new narrow $\Omega_c$ excited states in the $\Xi_c \bar{K}$ invariant mass spectrum: the $\Omega_c(3000)$, $\Omega_c(3050)$, $\Omega_c(3065)$, $\Omega_c(3090)$ and $\Omega_c(3119)$. Following this discovery, the Belle Collaboration confirmed four of these five narrow states. A popular interpretation is that the observed $\Omega_c^*$ states...
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Matteo Giordano (Eötvös Loránd University, Budapest)30/06/2026, 14:30
I discuss chiral symmetry restoration in the two-flavour chiral limit of QCD, focussing on its consequences for scalar and pseudoscalar susceptibilities, and on the resulting constraints on the Dirac spectrum. I show that effective breaking of $\mathrm{U}(1)_A$ symmetry in the chiral limit in the symmetric phase requires a number of peculiar features, namely that the near-zero spectrum develop...
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HENRY FROLAND (University of Washington)30/06/2026, 14:30Statistical analysis, Machine Learning and Quantum ComputingTalk
Quantum simulations of many-body systems offer novel methods for probing the dynamics of the Standard Model and its constituent gauge theories. The fully gauge-fixed Hamiltonian formulation of SU(2) lattice gauge theory provides a systematically improvable, qubit-efficient representation of the gauge field across all values of the coupling. This system is studied in its smallest non-trivial...
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Attila Pasztor (Eötvös University)30/06/2026, 14:30
Non-perturbative phenomena often require numerical treatment using the lattice formulation of the path integral. However, lattice calculations are sometimes rendered unfeasible by numerical sign (or complex action) problems. Such problems arise in several scenarios of interest in particle physics. Important examples include the sign problem at non-zero fermion density, as well as...
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Wolfram Weise (TU Munich)30/06/2026, 14:30
Observations of the heaviest neutron stars, together with mass and radius
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measurements, and gravitational wave signals from binary neutron-neutron star mergers, progressively tighten the constraints on the equation-of-state of dense baryonic matter. Using the presently available data base, results are presented of detailed Bayesian inference analyses. A focus is on premises and limitations... -
Bastian Kubis30/06/2026, 14:30
Decays of the lightest flavour-neutral pseudoscalar mesons, $\eta$ and $\eta'$, allow for many different physics tests in and beyond the Standard Model, with several possible decay modes suppressed at leading order due to various symmetry constraints. We will discuss rare, loop-suppressed decays such as $\eta^{(\prime)}\to \ell^+\ell^-$, $\eta^{(\prime)}\to \pi^0\ell^+\ell^-$, and related...
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Johan Bijnens (Lund University)30/06/2026, 14:30Talk
The hadronic light-by-light contribution to the muon anomalous magnetic moment has
historically been seen as the major long term stumbling block in obtaining
precise theoretical predictions for this important quantity.The phenomenological determination has improved to the level that it is below the present
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experimental accuracy. The speaker, together with Anton Rebhan (TU Vienna),... -
Wioleta Rzesa (Technische Universitat Munchen (DE))30/06/2026, 14:40
Femtoscopic measurements provide a unique high-precision probe of few-body dynamics in strongly interacting matter. In particular, they allow direct access to baryonic correlations that are relevant for understanding hyperon–nucleon interactions under extreme conditions. The presence of hyperons in dense stellar matter is expected to soften the equation of state, leading to the so-called...
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Gabriele Ferretti30/06/2026, 14:50
We present a class of models of electro-weak symmetry breaking based on strongly coupled gauge theories. We summarize the requirements imposed by flavor and CP violation on these models and discuss what the lattice can do to test their viability.
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Dhrubajyoti Rakshit (University of Wroclaw)30/06/2026, 15:00
We revisit the procedure to construct hybrid star EoS introduced in [1] in order to predict sequences of third families of compact stars, based on a phenomenological quark equation of state.
The goal of our study is to find a hybrid EoS which maximises the mass defect occurring in the accretion-induced transition from a hadronic star to its hybrid star twin configuration at 1.4 $M_\odot$ ....
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Dr Dorota M. Grabowska (University of Washington, Seattle)30/06/2026, 15:00Statistical analysis, Machine Learning and Quantum ComputingTalk
The last decade has seen massive progress in utilizing quantum computation to gain new insights in Standard Model dynamics. Of particular interest is simulating QCD phenomena that have hitherto been unaccessible via classical computing methods. In this talk, I discuss recent progress on one potential path towards encoding QCD onto digital quantum hardware in a resource-efficient manner. This...
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Tomáš Husek (Charles University)30/06/2026, 15:00
The rare radiative $K\to\pi\ell^+\ell^-$ decays ($\ell=e,\mu$) provide experimental access to the $K\to\pi\gamma^*$ transitions, and comparing the two channels allows for a stringent test of lepton-flavor universality. Although the underlying $K\to\pi\gamma^*$ conversions have been studied extensively, the radiative corrections for the $K^+\to\pi^+\ell^+\ell^-$ decays involve the...
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Junhao Yin30/06/2026, 15:00
Y(10753) was firstly found in Belle experiment on pi pi Y(nS) spectrum. Several competing interpretations have been proposed to understand for this structure.
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To reveal the nature of this structure, Belle II experiment collected about 20/fb data near 10.75 GeV. In this talk, we will give an overview of the experimental results with the data collected on Belle II, and compare the results with... -
Pavel Buividovich30/06/2026, 15:00
Soft gauge fields become effectively three-dimensional in high-temperature QCD. Dimensional reduction allows to express Euclidean-time fermionic correlators directly in terms of Dirac Hamiltonian that describes propagation of quarks in the background of soft, static chromo-magnetic fields. We demonstrate that high-temperature dimensional reduction allows to extract transport coefficients of...
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Georgios Mantzaridis (Technische Universitaet Muenchen (DE))30/06/2026, 15:00
Understanding the interaction of strange baryons with nucleons is essential for describing dense baryonic matter. In particular, the appearance of hyperons in neutron star cores is expected to soften the equation of state, hence limiting the maximum stellar mass. New constraints on the two- and multi-body hyperonic interactions are necessary to address this problem.
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So far, several attempts... -
Dr Patricia Magalhaes (UNICAMP), Patricia Magalhaes (UNICAMP)30/06/2026, 15:00
In a recent study, we investigated the role of hadronic final state interactions (FSI) in a production mechanism that can solve the puzzle of opposite helicity angle distributions in $B^+\to p\bar p \pi^+$ and $B^+\to p\bar p K^+$ decays [{\small \it Phys. Rev. D 110 (2024) 096026}].
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We assumeed the production mechanism is driven through a mesonic final state like $B^+\to xy\, m^+ \to p\bar... -
Marjan Cirkovic (Charles University (CZ))30/06/2026, 15:20
The NA62 experiment at CERN collected a large sample of in-flight $K^+$ decays during Run 1 (2016--2018) and resumed data collection in 2021, with operations planned through 2026. The $K^{+}\rightarrow\pi^{+}\nu\bar{\nu}$ decay is a golden mode for flavour physics. Using data collected in 2016--2022, NA62 announced the first observation of this decay with a signal significance greater than...
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Valeriya Mykhaylova (Jagiellonian University & University of Wrocław)30/06/2026, 15:20
This contribution outlines the construction of relativistic spin hydrodynamics from a kinetic-theory perspective. Within the Wigner function formalism, a unified formulation of perfect spin hydrodynamics is developed for spin-1/2 [1] and spin-1 [2] particles in local equilibrium. Key issues, including pseudogauge ambiguity, causality and stability [3], the applicability range of the framework...
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Dr JAMES,ALLAN INGOLDBY (IPPP, Durham University)30/06/2026, 15:20
Dilaton effective field theory provides a compelling low-energy description of near-conformal, strongly coupled gauge theories of the type studied on the lattice, and can also arise in scenarios where the Higgs boson is realised as a composite state. In this talk, I will derive perturbative unitarity bounds in the dilaton EFT using a geometric approach to the high-energy behaviour of...
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Marco Scodeggio (Universita e INFN, Ferrara (IT))30/06/2026, 15:30
The BESIII experiment, operating in the $\tau$-charm energy region, provides a unique environment for the study of heavy-quark systems in $e^{+}e^{-}$ annihilation. Its large data samples collected in the charmonium and above-open-charm-threshold regions allow for detailed investigations of conventional charmonium states and charmonium-like exotic candidates.
This talk will present recent...
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Yakov Shnir30/06/2026, 15:30
We present and study new U(1) gauged non-topological soliton solutions in the non-linear O(3) sigma model with a symmetry breaking potential in 3 + 1 dimensional space-time. The configurations are endowed with an electric and magnetic field and also carry a non-vanishing angular momentum density. We discuss properties of these solitons and investigate the domains of their existence.
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Felipe J. Llanes-Estrada30/06/2026, 15:30Statistical analysis, Machine Learning and Quantum ComputingTalk
Quantum computers are coming online and will quickly impact hadron physics once certain fidelity, decoherence and memory thresholds are met, quite possibly within a decade. We review a selected number of topics where ab-initio QCD-level information about hadrons can be obtained with this computational tool that is hard to come by from other methods. This includes high baryon-density systems...
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Giulia Ricciardi (University Federico II and INFN, Naples (IT))30/06/2026, 15:30
The interpretation of the SN1987A neutrino data continues to be hindered by significant absolute timing uncertainties and a well-known tension in the angular distributions. we perform a quantitative, high-precision alignment of the Kamiokande-II and Baksan data with the IMB clock, using for the first time the relative time offset (RTO) and reducing the temporal uncertainty by two orders of...
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Zhong-Hua Zhang (Fudan University)30/06/2026, 15:40
The quark-gluon plasma created in ultra-relativistic heavy-ion collisions is a rapidly expanding, strongly interacting fluid that is approximately conformal. Motivated by this approximate scale symmetry and by recent developments in spin hydrodynamics, I will discuss a relativistic hydrodynamic theory in which spin and intrinsic dilation, a charge associated with scale transformation, are...
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Jose Pelaez (Universidad Complutense de Madrid)30/06/2026, 15:40
We use the well-known light-vector resonances to show how their familiar second-sheet poles do not degenerate in the SU(3) flavor and chiral limits. This unintuitive behavior is the old Oakes-Yang problem that predates even the quark model. Using unitarized Chiral Perturbation Theory, we show that the expected degeneracy is indeed attained by other poles in other, often ignored, Riemann...
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Tomasz Korzec30/06/2026, 16:30
In lattice QCD charmonium spectroscopy calculations, disconnected contributions are often neglected. Including them leads to a host of difficulties. The signals become noisy and more importantly charmonium operators start mixing with lower lying states including glueballs and multi-particle states. We present ongoing efforts to overcome some of these challenges, employing novel operator...
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Kimiko Sekiguchi (Kyoto University)30/06/2026, 16:30
Understanding the strong nuclear force is of fundamental importance for understanding the formation of matter in the Universe. For decades since Yukawa’s meson theory, the nuclear force had been primarily formulated in terms of two-nucleon interactions. However, in the last twenty years, three-nucleon forces (3NFs), which arise when more than two nucleons interact, have been revealed as...
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Noemie Pilleux30/06/2026, 16:30
At Jefferson Lab, a broad program has been developed to study the structure of nucleons over a wide kinematic range using the CLAS12 detector in Hall B. Its versatility and large acceptance make it ideal for measuring exclusive reactions that provide access to Generalized Parton Distributions (GPDs). GPDs describe how quarks and gluons are distributed inside the nucleon in both longitudinal...
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Mr Oleksandr Vitiuk (University of Wroclaw (PL))30/06/2026, 16:30
Recent pion-deuteron femtoscopy measurements by ALICE [1] have been interpreted as evidence that deuterons form via coalescence of primordial nucleons and nucleons from intermediate $\Delta$ decays outside the fireball, with the observed correlation peak attributed to residual pion-nucleon correlations. This has been argued to provide a model-independent confirmation of the coalescence...
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Shinichiro Akiyama30/06/2026, 16:301Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
We study the deconfinement transition of (2+1)-dimensional $\mathbb{Z}_N$ lattice gauge theories at finite temperature using a thermal tensor network approach, where the partition functions at finite temperature are formulated as three-dimensional tensor networks. These tensor networks are first contracted in the temporal direction, and the subsequent coarse-graining in the spatial directions...
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Georgy Kornakov (Warsaw University of Technology (PL))30/06/2026, 16:50
Two-particle momentum correlations, femtoscopy, provide simultaneous access to the spatio-temporal emission dynamics at kinetic freeze-out and to the underlying hadronic interactions, including those of particle pairs inaccessible or difficult to access by other experimental means. This provides observables for quantitative characterisation of the properties of the transient states of matter...
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Yan Lyu30/06/2026, 17:00
Recent discoveries in the $J/\psi$-$J/\psi$ spectrum have sparked significant interests in understanding charmonium-charmonium interactions.
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In this talk, we will show some recent results on charmonia scatterings from lattice QCD, with a special focus on interaction mechanism, coupled channel effects, near-threshold properties. Implications to the experimental results will be also mentioned. -
Krzysztof Marek Kutak (Polish Academy of Sciences (PL))30/06/2026, 17:00
Recently is has been demonstrated that one can determine entropy of proton by calculation of entropy of quarks and gluons. This entropy can be measured Shannon as entropy of multiplicity of hadrons measured in Deep Inelastic Scattering and hadron-hadron collisions. I am going to review resent results on evolution of entanglement entropy as well as its Monte Carlo calculation.
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Stanislaw Mrowczynski (National Centre for Nuclear Research, Warsaw, Poland)30/06/2026, 17:10
For a long time studies of femtoscopic correlations have provided information about space-time characteristics of particle sources in high-energy collisions. Recently, the correlation functions have been also used to determine interaction parameters of correlated particles which is especially important for short-lived particles, for which scattering experiment are impossible. The abundance of...
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Martin Rohrmoser (Uniwersytet Jana Kochanowskiego w Kielcach)30/06/2026, 17:30
In results for heavy-ion collisions recently reported by the NA61/SHINE collaboration about 18$\%$ more charged than neutral Kaons are produced, while standard theoretical approaches can account for an imbalance of at most 5%.
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This violation of isospin symmetry has a significance of about $4.7\sigma$, according to a fit to data. The results are reproduced with a quark-recombination model and... -
Caio Cesar de Souza (The Graduate Center - CUNY)30/06/2026, 17:30
Four-dimensional pure Yang–Mills theory is expected to exhibit both confinement and a mass gap. A proof would require control over the infrared regime. We develop a new approach to study such properties in asymptotically-ultraviolet-free field theories. We implement the full program in the two-dimensional O(3) nonlinear sigma-model, where we apply perturbation theory in a small region of...
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Mackenzie Gibbons30/06/2026, 17:30
Novel algebraic methods are applied to quarkonium spectrum in the unquenched quark model, which incorporates the coupling between $Q\bar Q$ and $(Q\bar q)(q\bar Q)$ degrees of freedom. Working in the discrete position basis, the calculation of matrix elements simplifies considerably in comparison to other approaches, leading not only to improvements in computational efficiency, but also more...
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Dr Gyozo Kovacs (University of Wrocław & Wigner RCP)30/06/2026, 17:30
We investigate the analytic structure of the partition function at complex chemical potentials in a finite-temperature effective model of QCD matter, both at finite sizes and in the thermodynamic limit. In particular, we analyze the Lee–Yang zeros and the associated edge singularity, and their temperature dependence at fixed L and LT. We compare different diagnostics based on the Lee–Yang...
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Gaia Ingrosso (Goethe university Frankfurt)30/06/2026, 17:30
We investigate the role of inelastic parton scattering processes on the transport properties of the strongly interacting quark-gluon plasma (sQGP) at finite temperature $T$ and baryon chemical potential $\mu_B$. Our study is based on the effective dynamical quasi-particle model (DQPM).
The DQPM describes the non-perturbative nature of the strongly-interacting QGP at finite temperature and...
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Felipe J. Llanes-Estrada30/06/2026, 17:30
We deploy Quantum Chromodynamics (QCD) in Light-front Quantization (and Gauge), discretized and truncated in both Fock -- and momentum -- spaces with a particle-register encoding suited for quantum simulation; we show for the first time how to calculate fragmentation functions, a problem heretofore untractable in general from \emph{ab-initio} approaches. We provide a classical-simulator based...
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Jonathan Yigzaw (Justus-Liebig-Universität Gießen)30/06/2026, 17:30
The spectrum of Quantum Chromodynamics (QCD) contains not only conventional quark-antiquark mesons but also gluonic bound states, the glueballs. While glueball masses have been studied extensively in pure Yang-Mills theory, their mixing with mesons of identical quantum numbers remains a largely open question. While in recent years functional methods have been successfully used to produce mass...
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Dr Feliciano De Soto Borrero (Universidad Pablo de Olavide)30/06/2026, 17:30
We present a non-perturbative lattice investigation of the four-gluon vertex in Landau-gauge QCD, focusing on the form-factor associated with the tree-level tensor structure in soft kinematics, where one external momentum vanishes while the remaining three are arbitrary.
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More than ten thousand gauge configurations for different lattice spacings have been exploited for achieving a reasonable... -
Yuki Amari30/06/2026, 17:30
Glueballs, particles composed solely of gluons, are considered to play a key role in understanding one of the most challenging problems in modern physics: color confinement and the origin of mass in QCD. In the dual superconductor picture, glueballs can be viewed as closed flux tubes. It has been conjectured that such states are described by topological solitons with knotted structures, known...
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Pavlo Panasiuk, Pavlo Panasiuk (University of Coimbra)30/06/2026, 17:30
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Morgan Kuchta (University of Wrocław)30/06/2026, 17:30
The focus on the talk is on tetraquarks – systems of two quarks and two antiquarks. In the meson-meson molecule picture and the impact of the quark exchange on the binding energy of the \chi_{c1}(3872). We introduce the quark exchange between two mesons in the in the T-matrix and solve the Bethe-Salpeter Equation for the different types of bound states, including X(6900) and estimate the...
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Florian Höfer30/06/2026, 17:30
We present lattice simulation results for the correlator of two
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chromoelectric fields, connected by an adjoint Wilson line at zero
temperature. The calculations are performed in quenched SU(3) gauge theory
using a multi-level algorithm to improve the signal-to-noise ratio. The
chromoelectric fields are tadpole improved, and we test new methods to
subtract the power divergence originating... -
Tim Häuser30/06/2026, 17:30
We present results for meson pole contributions to the hadronic light-by-light (HLbL) part of the anomalous magnetic moment of the muon, obtained from functional methods. Using Dyson-Schwinger und Bethe-Salpeter equations, we are able to directly compute space-like meson $\to \gamma^{(*)} \gamma^{(*)}$ transition form factors, which are the main inputs for the computation of the HLbL...
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Nahuel Barrios (Universidad de la República)30/06/2026, 17:30
We study the mass spectrum of nonrelativistic mesons composed of charm and bottom quarks within the framework of the Curci-Ferrari model in the Landau gauge, deriving the Hamiltonian from the scattering amplitude of a single massive gluon exchange. We solve the Schrödinger equation for the dominant terms of the Hamiltonian, which include the kinetic energy and a Yukawa-type potential, together...
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Aheesh Chandrakant Hegde (Astrocent, CAMK, Polish Academy of Sciences (PL))30/06/2026, 17:30
The NEMESIS collaboration reports discrepancies between measured muon-induced neutron multiplicity spectra from lead targets and Monte Carlo predictions. While the MC spectra can be approximated by a single power-law function, the measurements, particularly at large depths, indicate the emergence of a second component at high-multiplicity values [W.H. Trzaska et al., Nucl. Phys. A 1070, 123389...
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Jakub Terlecki (Adam Mickiewicz University)30/06/2026, 17:30
Understanding the three-dimensional structure of the nucleon is one of the central goals of modern hadron physics, directly relevant to the program of the Electron-Ion Collider currently under construction at Brookhaven, whose primary objectives include precision imaging of nucleons and nuclei. We present results on the internal structure of the proton obtained within the diquark spectator...
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Mr Oleksandr Vitiuk (University of Wroclaw (PL))30/06/2026, 17:30Poster
Recent measurements by the NA61/SHINE Collaboration have revealed an
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unexpectedly large ratio of charged to neutral kaon yields in heavy-ion collisions at SPS energies. This charged kaon excess anomaly challenges current descriptions of hadron production and suggests that additional physics mechanisms may be required. In hadronic transport approaches, kaon production is sensitive both to the... -
Jin-Xin Tan (Shanghai Jiao Tong University)30/06/2026, 17:30
Understanding how the proton spin emerges from its quark and gluon degrees of freedom remains a central question in hadron physics. Helicity parton distribution functions encode the longitudinal spin structure of quarks as a function of the momentum fraction $x$, while the helicity ratio $\Delta f_q(x)/f_q(x)$ provides a direct measure of the net spin alignment of quarks of flavor $q$ inside...
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Marcelle Caram (University of Sao Paulo)30/06/2026, 17:30
Precise measurements of the inclusive hadronic ratio $R(s)$ below charm-quark threshold by the BESIII collaboration show a significant tension with perturbative QCD (pQCD) predictions as well as with earlier results from the KEDR collaboration. In this work, we scrutinize the pQCD prediction for $R(s)$ with three active flavors, analyzing the perturbative behavior through its Borel transform...
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Tom Magorsch30/06/2026, 17:30
We review the Open Quantum System formulation of bottomonium in-medium. Starting from an effective pNRQCD description, the reduced density matrix of the heavy quarkonium sector is evolved with a Lindblad master equation. We solve the resulting real-time evolution numerically using quantum trajectories, which provide an efficient stochastic unraveling of the Lindblad equation. We showcase the...
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Kassymkhan Baiseitov (Al-Farabi Kazakh National University)30/06/2026, 17:30
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Arif Sarkar (Faculty of Physics and Astronomy, Adam Mickiewicz University in Poznan)30/06/2026, 17:30
Understanding and controlling systematic uncertainties is one of the main challenges in lattice calculations. In this work, we investigate the t-dependence of Mellin moments for proton unpolarized GPDs at zero skewness. Our study focuses on two of the most significant sources of systematic uncertainty: discretization effects and excited-state contamination. For matching lattice results to the...
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Biplab Mahato30/06/2026, 17:30
In this talk, I will discuss four-fermion contact interaction as an effective field theory of strongly interacting fermionic systems in 2+1 and 3+1 dimensions. The non-perturbative effects, specifically the formation and dissociation of bound states from the constituents, can be captured by Mean-Field approximations. However, I will focus on the fluctuations on top of the mean field to study...
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Anthony Ciavarella (Lawrence Berkeley National Lab), Enrique Rico Ortega (CERN), Monika Aidelsburger, Pietro Silvi, Shinichiro Akiyama01/07/2026, 09:00Focus subsession on Topology and confinement at the interface of particle physics and condensed matter
Chair:
Monika AidelsburgerPanellists:
Enrique Rico Ortega
Pietro Silvi
Anthony Ciavarella
Shinichiro AkiyamaQuestions to discuss during the RT:
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- Which fundamental scientific problem do you believe quantum technologies could realistically solve within the next 5–10 years that would remain inaccessible to classical approaches? Have important steps been made recently?... -
Yu Chen (University of Würzburg)01/07/2026, 11:00
The nature of Dark Matter (DM) and the origin of small neutrino masses remain open questions in particle physics, motivating extensions of the Standard Model. In this talk, I explore Composite Higgs (CH) models that can simultaneously address both issues. As a concrete example, I will present a CH model based on the coset SU(6)/Sp(6), which naturally provides potential DM candidates as a...
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Giorgio Comitini (Università degli Studi di Catania - Dipartimento di Fisica e Astronomia "Ettore Majorana")01/07/2026, 11:00
We present a thorough analysis of dynamical gluon mass generation under the lens of operatorial BRST quantization of linear covariant gauges. We show that, in the decoupling scenario, a massless colored scalar takes the place of the longitudinal gluon polarization as the first parent of the elementary BRST quartet. The scalar can be interpreted as an unphysical bound-state superposition of two...
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Prof. Gert Aarts (Swansea University)01/07/2026, 11:001Statistical analysis, Machine Learning and Quantum ComputingTalk
Diffusion models are a widely used method in generative AI to produce images and videos. I will discuss the application to lattice field theory and the connection with methods known from theoretical physics, such as stochastic quantisation. Applications to non-abelian gauge theories using gauge equivariant convolutional neural networks are presented.
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Jacopo Ghiglieri (Centre National de la Recherche Scientifique (FR))01/07/2026, 11:00
The axion can address the strong CP problem and also provide a promising dark matter candidate in the form of a condensate of zero-momentum modes. In addition, axion models feature an unavoidable “hot” ensemble of thermally-produced axions acting as dark radiation and thus subject to present and future constraints from the effective number of neutrinos $N_\mathrm{eff}$.
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I will concentrate on... -
Shota Shibagaki01/07/2026, 11:00
Core-collapse supernovae (CCSNe) provide extreme environments where both the macroscopic fluid dynamics and the microscopic equation of state (EOS) of dense nuclear matter determine the explosion mechanism and the multi-messenger signatures.
At supra-nuclear densities, a first-order QCD phase transition from hadronic to quark matter can significantly alter the stellar dynamics. Recent CCSN...
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Monika Aidelsburger01/07/2026, 11:00Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
Lattice gauge theories underpin our understanding of fundamental interactions, from quark confinement in QCD to the emergent gauge structures that appear in strongly correlated condensed matter systems. Analog quantum simulators based on ultracold atoms in optical lattices offer a complementary route to explore such theories in regimes that are challenging for classical numerical methods, with...
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Kei Tohme (Kyoto University)01/07/2026, 11:00
Quark-number susceptibilities are thermodynamic quantities that characterize quark-number fluctuations. Their ratios provide sensitive probes of the deconfinement transition, as they exhibit distinct limiting behaviors in the hadronic and quark–gluon plasma phases. For example, under the Boltzmann approximation, the ratio of the fourth- to second-order susceptibility is 1 in a hadron gas and...
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Derek Teaney01/07/2026, 11:00
We present a detailed numerical and analytical study of the out-of-equilibrium dynamics of Model G, the dynamical universality class relevant to the chiral phase transition. We perform numerical 3D stochastic (Langevin) simulations of the $O(4)$ critical point for large lattices in the chiral limit. We quench the system from the high-temperature unbroken phase to the broken phase and study the...
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Michał Marczenko (University of Wrocław)01/07/2026, 11:20
In this talk, I present our recent results on the hadron spectra in QCD. We show that hadrons in QCD follow a spectrum determined by string dynamics characterized by a universal Hagedorn temperature linked to the string tension. This behavior was recently established for light hadrons and glueballs [1, 2]. We also demonstrate that the same dynamics describes the heavy-flavor sector [3]. The...
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Johan Bijnens (Lund University)01/07/2026, 11:20
A long time ago we calculated to two-loop orders a number of quantities at two-loop order for more general symmetry breaking pattern SU(N) times SU(N)/SU(N), SU(N)/SO(N) and SU(N)/Sp(N) in JHEP 11 (2009) 116 [arxiv:0910.5424 [hep-ph]] and JHEP 03 (2011) 028 [arxiv:1102.0172 [hep-ph]] for the equal mass case. Since then a number of lattice QCD calculations have been performed and the...
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Michael Fucilla, Mr Michael Fucilla (Narodowe Centrum Badań Jądrowych (NCBJ))01/07/2026, 11:30
The center-of-mass energies accessible at modern accelerators, such as the Large Hadron Collider (LHC), as well as at next-generation facilities like the Electron-Ion Collider (EIC), provide a unique opportunity to explore hadronic matter under the most extreme conditions ever achieved. In particular, these experiments grant access to the so-called \textit{Regge–Gribov} (or \textit{semi-hard})...
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Akio Tomiya (Tokyo Woman's Christian University)01/07/2026, 11:301Statistical analysis, Machine Learning and Quantum ComputingTalk
Machine learning is becoming an increasingly important tool across strong-interaction physics, where progress depends on a combination of first-principles calculations, effective descriptions, large-scale simulations, and increasingly sophisticated data analysis. In this talk, I will discuss this broader development from the viewpoint of lattice field theory, where exact symmetries, controlled...
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Susan Gardner (University of Kentucky)01/07/2026, 11:30
Leveraging the joint QCD and QED factorization of DIS, with its improved sensitivity and reduced uncertainties in radiative corrections, opens new windows on the possibility of exotic particle emission, such as weakly coupled particles originating from a dark or hidden sector, as part of generic initial-state radiation. Measurements of the cross-section would provide evidence through anomalous...
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Dimitar Lubomirov Mihaylov (University of Sofia - St. Kliment Ohridski (BG))01/07/2026, 11:30
The production mechanism of light (anti-)nuclei remains a fundamental question in high-energy nuclear physics. While Statistical Hadronization Models have provided a highly successful description of particle yields, the microscopic origin of loosely bound states like the deuteron continues to be a puzzle. In high-energy heavy-ion collisions, the characteristic freeze-out temperature of ~150...
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Tamas G. Kovacs (Eötvös Loránd University, Budapest)01/07/2026, 11:30
Recently we developed an instanton-based random matrix model that precisely reproduces the lowest part of the spectrum of the lattice overlap Dirac operator, and in particular the details of the spectral peak at zero. Our model allows us to study the spectral peak for volumes and instanton densities that are several orders of magnitude beyond the possibilities of direct lattice calculations. ...
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Jan-Erik Christian (Hamburg Observatory)01/07/2026, 11:30
We discuss the impact a first-order phase transition from hadronic to deconfined quark matter has on the stability of a proto-neutron star. For cooled down neutron stars, one of the clearest signals for a phase transition in neutron stars are so-called twin stars. Two stars are referred to as twins, when they have the same mass but very different radii. Recent data disfavors this scenario, but...
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Rachel Horohan Darcy (Maynooth University)01/07/2026, 11:40
Understanding how heavy-light mesons behave in hot QCD matter is essential for
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interpreting results from heavy-ion collision experiments and studying the properties of
the Quark-Gluon Plasma (QGP). We present results from the FASTSUM collaboration
for temperature dependence of the B-meson spectrum from dynamical Lattice QCD.
We use relativistic light quarks and we simulate the b quarks... -
Ayuki Kamada01/07/2026, 11:50
The nature of dark matter (DM) is one of most important mysteries not only in cosmology, but also in particle physics.
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Dark hadrons, appearing in dark strong dynamics akin to our quantum chromodynamics, are naturally long-lived and thus a viable candidate of DM.
Since their scattering cross section is expected to be as large as our hadrons, they realize so-called self-interacting dark matter... -
Sushobhan Mandal (National Centre for Nuclear Research, Warsaw)01/07/2026, 11:50
Direct photons, produced in initial hard scatterings or in a hot and dense medium, are an important element of the study of the quark-gluon plasma, the main goal of the ALICE experiment. Photons do not interact strongly and therefore escape the medium almost unchanged, carrying information about the properties of the matter at the space-time point of their emission. The prompt, high-energy...
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Paweł Sznajder (National Centre for Nuclear Research)01/07/2026, 12:00
The formalism of Generalized Parton Distributions (GPDs) provides a set of powerful tools to investigate nucleon structure. In particular, it allows us to describe the nucleon as an extended object and provides access to the QCD energy-momentum tensor. The latter enables the evaluation of the orbital angular momentum contribution to the nucleon spin through Ji’s sum rule, and helps us...
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Sergi Gonzalez-Solis (University of Barcelona)01/07/2026, 12:00
In this work, we have performed a theoretical analysis of axio-hadronic decays of the $\eta$ and η′ mesons, paying particular attention to single ALP emission in $\eta^{(\prime)}\to\pi\pi a$ decays, where $\pi\pi=\pi^{0}\pi^{0},\pi^{+}\pi^{-}$. Using the framework of $U(3)$ chiral perturbation theory, we have calculated the leading order amplitudes for these processes, and using dispersion...
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Dr Georg Bergner (FSU Jena)01/07/2026, 12:00
In this talks, we present a summary of our investigations of SU(N) adjoint QCD in two dimensions with one Majorana fermion on the lattice. This theory has served as a theoretical playground for decades, invoking methods from bosonization to non-invertible symmetries. We provide numerical evidence for how the linear potential of the massive theory dissolves into the screened vacuum of the...
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Massimo Mannarelli01/07/2026, 12:00
We discuss vortex formation in pion condensates. As in standard superfluids, in the pion condensed phase vortices appear above a critical frequency and the corresponding angular momentum is quantized. However, there are some peculiar properties of pion vortices that are discussed close to the so-called BPS bound.
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Margaret Carrington (Brandon University)01/07/2026, 12:00
We calculate the leading and subleading corrections to the real-time static potential in a high-temperature quark-gluon plasma for distances smaller than the screening length. The calculation involves one-loop 2- and 4- point functions in the hard-thermal-loop effective theory. We use our results to estimate the binding energy, the decay width, and the dissociation temperature of the...
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Elia Cellini (University of Edinburgh)01/07/2026, 12:00Statistical analysis, Machine Learning and Quantum ComputingTalk
In recent years, flow-based samplers have emerged as a promising alternative to traditional sampling methods in lattice gauge theory. In this talk, we will introduce a class of flow-based samplers based on out-of-equilibrium statistical mechanics, known as Stochastic Normalizing Flows (SNFs), which combine neural networks with non-equilibrium Monte Carlo algorithms. We will then present an...
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Oleksandra Panova (Institute of Nuclear Physics Polish Academy of Sciences (PL))01/07/2026, 12:10
NA61/SHINE is a multipurpose fixed-target experiment located at the CERN SPS. One of its main goals is to study the onset of deconfinement and the properties of strongly interacting matter. For this purpose, a unique two-dimensional scan in collision energy (√sNN = 5.1 − 16.8/17.3 GeV) and system size was performed.
Due to their relatively large mass, proton spectra are weakly (less than...
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Dr Leonardo Tinti (Uniwersytet Jana Kochanowskiego w Kielcach)01/07/2026, 12:20
In recent studies it has been proposed to measure the correlation in the momenta of pairs of charm and anti-charm mesons in heavy-ion collisions. The maximally thermalized position of the charms at the hadroniation hypersurface can be at odds with a speed bounded by the speed of light in the vacuum. Either there is a final correlation in momenta or there is an apparent teleportation.
As it...
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Johan Messchendorp01/07/2026, 12:30
An overview is given of a hadron physics program for the next decades at the new accelerator complex FAIR. Driven by high-intensity (anti)proton and secondary pion, combined with versatile detector systems, the program will address key questions in `strong QCD'. It includes precision studies of hadron–hadron interactions, hadron spectroscopy, and the electromagnetic structure of hadrons and...
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Christian Schmidt-Sonntag01/07/2026, 12:30Talk
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Rafel Escribano01/07/2026, 12:30
The possibility for the existence of a leptophobic $U(1)$ gauge boson associated to baryon symmetry is scrutinized in the MeV-GeV mass range by means of an exhaustive analysis of the corresponding golden channels $\eta\to\pi^0\gamma\gamma$ and $\phi\to\pi^0\eta\gamma$.
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Using the latest experimental data on these two processes and taking also into account the Standard Model contributions from... -
Sebastian Grieninger (University of Washington)01/07/2026, 12:30
String breaking, the process by which flux tubes fragment into hadronic states, is a hallmark of confinement in strongly-interacting quantum field theories. We examine a suite of quantum complexity measures to characterize the string breaking process in the 1+1D Schwinger model, demonstrating the presence of nonlocal quantum correlations along the string that may affect fragmentation dynamics,...
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Dr Gabriel Wlazłowski (Warsaw University of Technology)01/07/2026, 12:30
Density functional theory (DFT) is one of the most widely used methods for simulating the microscopic properties of many-body systems. It provides a unified framework for studying the static, dynamical, and thermodynamic behavior of strongly interacting Fermi matter. In this seminar, I will present recent progress at the intersection of nuclear theory and high-performance computing aimed at...
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Samrangy Sadhu (University of Bonn (DE))01/07/2026, 12:40
Heavy quarks (charm and beauty), produced in hard-partonic scatterings in proton--proton (pp) collisions, provide stringent tests of perturbative quantum chromodynamics (pQCD) and sensitivity to hadronisation mechanisms. Measurements of non-strange D-meson and B-meson production probe QCD dynamics at different mass scales.
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In this contribution, we present recent ALICE results in pp collisions... -
Wolfgang Schleich (Universität Ulm, Institut für Quantenphysik)01/07/2026, 18:30Talk
The 100th anniversary of the birth of quantum mechanics last year and this year, invites us to read again the seminal articles of the founding fathers of quantum mechanics. However, we might be surprised to learn that the theory which today forms one off the pillars of modern physics, did not emerge in the straightforward way that we teach it today.
In this talk we summarize key papers of...
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Jon-Ivar Skullerud02/07/2026, 09:00
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Prof. Alexander Rothkopf (Korea University)02/07/2026, 09:30
Heavy quarkonium, the bound state of a heavy quark and antiquark, is the prototypical laboratory to study the QCD force in vacuum and at finite temperature [1]. Using lattice QCD simulations of static quark-antiquark pairs, the force has been mapped at zero temperature with high precision, revealing the two paradigms of the strong interactions: confinement and asymptotic freedom.
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At finite... -
Prof. Axel Maas (University of Graz)02/07/2026, 10:00
While the interaction of dark matter with the standard model are necessarily weak, it is possible that it self interacts. In fact, various astrophysical observations can be taken as hints towards significant such self-interactions.
In this overview, this idea and observations in its favor will be briefly rehearsed. Furthermore the most prominent ultraviolet complete models and their...
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Dr Violetta Sagun (University of Southampton)02/07/2026, 11:00
Compact stars are among the most exotic and dense laboratories in the Universe for probing the properties of strongly interacting matter. Understanding the complex phenomena observed in neutron and hybrid stars requires expertise in nuclear physics, astrophysics, and gravitational-wave science. A realistic equation of state (EoS) must be consistent not only with experimental data on nuclear...
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Antonio Pich (IFIC, Univ. Valencia - CSIC), Antonio Pich Zardoya02/07/2026, 11:30
High-precision measurements of suppressed flavour transitions offer a sensitive window into high-scale new physics, but unlocking this potential requires precise control over Standard Model theoretical uncertainties. A rigorous assessment of QCD corrections is therefore essential. In this talk, the current status of several flavour anomalies will be reviewed.
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Ayuki Kamada, Ethan Neil, Fabian Zierler (Technical University of Munich), Gabriele Ferretti, Susan Gardner (University of Kentucky)02/07/2026, 12:00Strongly-Coupled Theories and Dark Matter
Chair: Ethan Neil
Panellists:
Gabriele Ferretti
Susan Gardner
Ayuki Kamada
Fabian Zierler.Questions to discuss during the RT:
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- Universality: what are some unique, qualitative predictions of confining dark sectors that are robust? What mechanisms or features make confining models appealing and unique from a theory perspective? Are there any additional predictions... -
Wei-lin Wu (Peking University)02/07/2026, 14:00
For the first time, we implement the deep-neural-network-based variational Monte Carlo approach for the multiquark bound states. We design a novel and high-efficiency architecture, DeepQuark, to address the challenges in multiquark systems. Our method demonstrates competitive performance with state-of-the-art approaches in the nucleon, doubly heavy tetraquark, and fully heavy tetraquark...
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Dr Masayuki Wada (AstroCent: Nicolaus Copernicus Astronomical Centre, PAN, Poland)02/07/2026, 14:00
The DarkSide-20k experiment, currently under construction at Laboratori Nazionali del Gran Sasso (LNGS), is designed to lead the search for weakly interacting massive particles (WIMPs) with an exposure of 200 tonne-years while minimizing instrumental backgrounds. Its core consists of a dual-phase Time Projection Chamber (TPC) containing 50 tonnes of low-radioactivity liquid argon, surrounded...
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Antonio Miguel Pineda Ruiz, Antonio Pineda02/07/2026, 14:00
We show how to apply hyperasymptotic expansions to QCD observables. This allows, in principle, to achieve exponential, $\sim exp(-1/\alpha)$, accuracy in their determination, with a well defined parametric error. We apply these hyperasymptotic expansions to the determination of the mass of the lightest gluelump using two different observables and perturbative expansions, confirming the...
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Riccardo Longo (University and INFN Torino (Italy))02/07/2026, 14:00
The 2025 LHC light-ion program has opened a new frontier in the exploration of strongly interacting matter through the first high-energy oxygen–oxygen and neon–neon collisions. These intermediate-size collision systems provide a unique opportunity to investigate the onset and system-size dependence of quark–gluon plasma signatures, bridging the gap between proton–nucleus and heavy-ion...
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Johan Bijnens (Lund University)02/07/2026, 14:00
The talk will present the work on short-distance contributions to the
hadronic light-by-light part of the muon g-2 as in the Standard Model by
Johan Bijnens, Nils Hermansson-Truedsson and Antonio Rodriguez-Sanchez.
This series of papers removed one of the obstacles to obtaining this
contribution precisely.We first discuss the general work published in Phys.Lett.B 798 (2019)
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134994... -
Glòria Montaña (Universitat de Barcelona & ICCUB)02/07/2026, 14:00
High-energy photoproduction is a primary tool for mapping the light hadron spectrum at facilities like Jefferson Lab (GlueX, CLAS12). In this kinematic regime, forward scattering reactions are governed by the exchange of Regge trajectories. A rigorous theoretical description is essential for understanding production mechanisms and constraining modern amplitude analyses.
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This talk presents... -
Ismail Zahed, Prof. Ismail Zahed (Stony Brook University)02/07/2026, 14:00
We present a quantitative framework connecting the topological structure of the QCD vacuum to hadron properties and parton dynamics.
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Using gradient flow renormalization group methods, we describe nonperturbative QCD as a Wilsonian effective theory dominated by
ensembles of instantons, capturing key phenomena such as chiral and conformal symmetry breaking, and anomalies. We use this... -
Diogo Boito (University of Sao Paulo)02/07/2026, 14:30
Reducing the uncertainty of the Standard Model $g-2$ determination is a crucial task. A key issue is the discrepancy between lattice-QCD and data-driven hadronic vacuum polarization (HVP) results. A path to resolve this discrepancy is the precise data-driven determination of the isospin-limit light-quark connected (lqc) and strange plus light-quark disconnected (s+lqd) components of the HVP...
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Mesut Arslandok (Yale University (US))02/07/2026, 14:30
Particle correlations in heavy-ion and small-system collisions provide powerful insights into the underlying dynamics of strongly interacting matter. They probe the hadronization mechanisms, offer sensitivity to the time scales at which correlations are established, thus tracing the system’s evolution, and help disentangle the relative contributions of soft and hard particle production...
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Luis E. Oxman (Fluminense Federal University)02/07/2026, 14:30
In this talk, we derive an effective model in which quark field dynamics is governed by interactions with an ensemble of percolating oriented and nonoriented center vortices. The construction incorporates the natural correlations between the Cartan fluxes propagating along these collimated configurations. As shown in previous work, these correlations give rise to solitonic confining flux tubes...
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Beata Kowal (University of Wrocław)02/07/2026, 14:30Statistical analysis, Machine Learning and Quantum ComputingTalk
The neural network framework allows us to obtain empirical fits to electron scattering cross sections on carbon over a wide kinematic region. Transfer learning makes it possible to adapt a deep neural network trained on one type of data to new problems. We apply transfer learning to derive a new model from a previously obtained set of neural networks trained on electron-carbon cross-section...
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Ethan Neil02/07/2026, 14:30
Composite dark sectors can provide well-motivated solutions to the dark matter coincidence problem and rich, complex phenomenology. I will present results on a general study of a dark mirror sector with mirror copies of electrons and a "dark QCD". The parameters of the mirror sector vary from their Standard Model counterparts, allowing for regions of stable dark neutrons or atomic dark...
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Sandra Tomas Valls (Universitat de Barcelona (ICCUB))02/07/2026, 14:30
We address pion transitions involving heavy quarkonium and heavy exotic states in the Born-Oppenheimer effective field theory. Some of these states have a size similar or larger than typical hadronic scale. For these states the usual QCD multipole expansion breaks down and the transition form factors become unknown functions. To address this, we propose an interaction Lagrangian for pions and...
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Andrew Jackura (The College of William & Mary)02/07/2026, 14:30
Accessing properties of hadrons from Quantum ChromoDynamics (QCD) poses several challenges given its non-perturbative nature and the fact that most states couple to multi-particle decay modes. Although challenging, advances in both theoretical and numerical techniques have allowed us to determine few-body systems directly from QCD. A synergistic approach between lattice QCD and scattering...
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Noe Duarte Gonzalez02/07/2026, 14:50
We investigate axion-meson mixing and its consequences for low-energy scattering and decay processes within the framework of Chiral Perturbation Theory. Starting from the most general effective Lagrangian, we derive mixing terms between a general axion-like-particle (ALP) and light pseudoscalar mesons and compute their impact on 4-body, axion-meson amplitudes, including isospin breaking...
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Yui Hayashi (UTokyo)02/07/2026, 15:00
We consider gauge-invariant definitions of the "center-vortex condensation" and "monopole condensation" for 4d theories in terms of the $\mathbb{Z}_N$ 1-form symmetry. With these definitions, we show that the monopole condensation is necessary for the center-vortex condensation if the system is gapped and respects locality.
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Krzysztof Graczyk (University of Wrocław)02/07/2026, 15:00Statistical analysis, Machine Learning and Quantum ComputingTalk
We will present our recent results on the development of AI-driven models for simulating (anti)neutrino–nucleus collisions. We focus on (anti)neutrino energies characteristic of accelerator-based neutrino experiments, such as T2K. In this energy range, the theoretical description of (anti)neutrino–nucleus interactions is complex, with nuclear effects playing a crucial role. We propose...
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Ruben Oncala Mesa (Universidad San Pablo CEU), Rubén Oncala02/07/2026, 15:00
Hybrid quarkonia may provide firm candidates to explain some of the so-called XYZ mesons. We investigate charmonium and bottomonium hybrids using the Born-Oppenheimer Effective Field Theory and incorporating the latest lattice QCD results for hybrid static potentials.
In this talk, we discuss hybrid-to-quarkonium semi-inclusive decay widths for both spin-conserved and spin-flip channels. A...
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Malgorzata Anna Janik (Warsaw University of Technology (PL))02/07/2026, 15:00
Two-particle angular correlations serve as a powerful diagnostic tool for investigating the underlying mechanisms of baryon production. These correlations result from a complex superposition of various physical effects, including mini-jet fragmentation, resonance decays, Bose-Einstein statistics, and local conservation of momentum.
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The "baryon correlation puzzle" emerged following the... -
Javier Redondo (Universidad de Zaragoza)02/07/2026, 15:00
The dark matter distribution of QCD axions can have non-trivial highly-inhomogeneous small scale features even in the pre-inflarionary scenario where its fluctuations are suppressed by the inflationary period. Amplification of the inevitable adiabatic fluctuations in a period of kination, early matter domination, etc... can lead to the formation of dense miniclusters, originally predicted only...
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Dr Emilio Royo (Universidad Cardenal Herrera-CEU)02/07/2026, 15:00
We present a theoretical study of the doubly radiative decays $\eta^{(\prime)}\to\pi^{0}\gamma\gamma$ and $\eta^{\prime}\to\eta\gamma\gamma$, including contributions from vector, scalar, and tensor meson exchanges. Vector meson dominance and the linear sigma model are employed to describe vector and scalar contributions, while the $a_{2}(1320)$ tensor meson is incorporated within a chiral...
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Christopher Allton (Swansea University)02/07/2026, 15:20
A study of centre vortices is presented on anisotropic, dynamical QCD lattices from the FASTSUM collaboration. Results are discussed across a broad sweep of temperatures up to >500 MeV. Centre vortex percolation, connectivity and other properties are analysed, supporting the existence of an intermediate QCD “phase” above $T_c$ that maintains confinement.
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Preet Bhanjan Pati (University of Copenhagen (DK))02/07/2026, 15:20
Collective behaviors in pp and p–Pb collisions have sparked debate on the onset of hydrodynamics in small systems. However, the proton's poorly constrained geometry has hindered definitive conclusions. The 2025 LHC runs with OO and Ne–Ne collisions provide a unique solution: their well-defined initial states allow a direct test of whether collectivity stems from hydrodynamic flow or...
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Marcelle Caram (University of Sao Paulo)02/07/2026, 15:20
Precise measurements of the inclusive hadronic ratio $R(s)$ below charm-quark threshold by the BESIII collaboration show a significant tension with perturbative QCD (pQCD) predictions as well as with earlier results from the KEDR collaboration. In this work, we scrutinize the pQCD prediction for $R(s)$ with three active flavors, analyzing the perturbative behavior through its Borel transform...
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Christopher Thomas (University of Cambridge)02/07/2026, 15:30
In recent years there has been a lot of progress in studying excited and exotic hadrons, resonances and scattering using first-principles lattice QCD calculations. I will summarise a selection of work on charm and charmonium-like mesons such as results relevant for the exotic $T_{cc}$, $T_{cs}$ and $T_{c\bar{s}}$ observed by LHCb, the $D^{*}_{0}(2300)$ and enigmatic $D^{*}_{s0}(2317)$ charm...
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Astrid Carstensen (University of Graz)02/07/2026, 15:301Statistical analysis, Machine Learning and Quantum ComputingTalk
Real time evolution in QFT poses a severe sign problem, which may be alleviated via a complex Langevin approach. However, simulation with large real-time extent give incorrect results. A kernel in a complex Langevin equation is known to influence the appearance of the boundary terms and integration cycles, and thus kernel choice can improve the range of real-time extents with correct results....
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Chuang Huang (Heidelberg University, ITP)02/07/2026, 15:40
Within the first-principles functional QCD framework at finite temperature and density, we include the dependence on a background gauge field, compute the Polyakov-loop potential, and study the confinement–deconfinement phase transition of QCD. Based on this, we derive the background-field-dependent quark two-point correlation functions and evaluate the fluctuations of conserved charges at...
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Dr Gyozo Kovacs (University of Wrocław & Wigner RCP)02/07/2026, 15:40
We study different realizations of the chiral anomaly linear and quadratic in the determinant 't Hooft terms. Following the recent work Phys.Rev. D 111 (2025) 1, 1, we discuss how the order of the phase transition and then the Columbia plot are affected. Next, we turn to CP violation: keeping track of the $\theta$ dependence, both in the linear and quadratic 't Hooft terms, we investigate...
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Martin Rohrmoser (Uniwersytet Jana Kochanowskiego w Kielcach)02/07/2026, 15:40
Experimental data of nuclear collisions from various groups, summarized recently by the NA61/Shine collaboration [1], exhibit a
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significant imbalance of the produced charged versus neutral kaon multiplicities.
In order to better isolate isospin-symmetry violation, within a quark-recombination model we present a novel ratio of kaon multiplicities that accounts for isospin imbalances
in the... -
Viktor Gorbenko (EPFL - Ecole Polytechnique Federale Lausanne (CH))02/07/2026, 16:30
Confining flux tubes are objects that underlie the phenomenon of confinement in gauge theories like Yang-Mills. While there is a plenty of numerical evidence that they form in known confining QFTs, the mechanism of their formation and detailed dynamical structure is still unknown. After reviewing analytic and numerical results in flat space, I will suggest a new approach in which we place a...
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John Gracey (University of Liverpool)02/07/2026, 16:30
We report on properties of the conformal window in non-abelian gauge theories at high orders in perturbation theory with a particular focus on several representations in a variety of Lie groups.
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Magnus Schaaf (Technical University of Munich)02/07/2026, 16:30
Discrepancies between theoretical predictions and experimental determinations of partial decay widths of the lowest-lying charmonium states call for a thorough theoretical understanding of magnetic dipole (M1) transitions in the charmonium system. Recent high-precision measurements of exclusive $\eta_c$ decays underscore the need for careful and independent determinations of the...
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Petr Navratil02/07/2026, 16:30
First-principles (or ab initio) methods that solve the quantum many-nucleon problem with controlled approximations based on validated chiral nucleon-nucleon (NN) and three-nucleon (3N) forces are currently the best path to achieving a predictive theory of nuclear structure, low-energy scattering and reactions between nuclei. Among them, the ab initio no-core shell model with continuum...
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Marina Krstic Marinkovic (ETH Zurich)02/07/2026, 16:30
The quest for sub-percent precision in hadronic observables requires the inclusion of isospin-breaking (IB) corrections in Lattice QCD simulations. There are two ways to compute those: the nonperturbative simulation of QCD+QED and the perturbative expansion from an isospin-symmetric theory, also known as the RM123 method. The latter is widely established in literature but it is usually...
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Julian Mayer-Steudte02/07/2026, 16:30
In pNRQCD, the inclusive P-wave heavy quarkonium decay width into light hadrons factorizes at a scale $\Lambda$, and the non-perturbative contribution reduces to $\mathcal{E}_3$, an integral over the chromoelectric correlator. This correlator is universal, independent of the specific initial state. In this work, we conduct lattice computations of the chromoelectric correlator to determine...
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Szabolcs Istvan Borsanyi02/07/2026, 16:30
We extend the range of lattice QCD simulations with a density-of-states
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based approach. We do so by constraining the configuration space to sample
gauge configurations that are relevant at high density, but would be
suppressed in a standard simulation at $\mu_B=0$. We use this approach to
study the deconfinement transition as a function of density, and to
compute the Yang-Lee edge in the... -
Anthony Ciavarella (Lawrence Berkeley National Lab)02/07/2026, 16:30Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
Quantum computers offer the potential to directly simulate the real-time dynamics of strongly coupled quantum field theories. In particular, hadronization can be studied by performing simulations of the QCD string-breaking process. In this talk, a Krylov-based truncation of an SU(2) LGT in 2+1D will be introduced. This theory will be mapped onto a quantum computer, and the results of...
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Simon Hibler02/07/2026, 16:50
We use the Born--Oppenheimer effective field theory factorization to compute the inclusive production cross sections of the $\chi_{c1}(3872)$ and its partner in the bottomonium sector.
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In the same framework, we compute the production cross sections of the pentaquark states $P_{c\bar{c}}(4312)^+$, $P_{c\bar{c}}(4457)^+$, $P_{c\bar{c}}(4380)^+$ and $P_{c\bar{c}}(4440)^+$ within two possible... -
Francesco Giacomo Knechtli (Bergische Universitaet Wuppertal (DE))02/07/2026, 16:50
We study using lattice QCD the phenomenon of string breaking, the flattening of the ground state potential between a static quark and a static anti-quark at large separation distance due to the formation of a pair of static-light mesons. We compute the three lowest energy levels of the static potential in QCD with light (degenerate up and down) and strange dynamical quarks for a set of quark...
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Volodymyr BILOSHYTSKYI02/07/2026, 17:00
Lattice data for the electromagnetic isospin-breaking correction to the hadronic vacuum polarization contribution (HVP) to anomalous magnetic moment of the muon are analyzed in the context of a phenomenological hadronic model. A steep chiral dependence and non-negligible finite-volume effects are observed and quantified within the model.
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Toshihiro Sato (Leibniz Institute for Solid State and Materials Research Dresden)02/07/2026, 17:00Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
Interacting Dirac fermions provide a useful microscopic setting in which competing orders, emergent symmetries, and topological terms can be studied in a controlled manner. In this talk, I will present sign-problem-free quantum Monte Carlo simulations of microscopic lattice models of interacting Dirac fermions, where competing symmetry-breaking orders can be organized in terms of mutually...
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Dr Feliciano De Soto Borrero (Universidad Pablo de Olavide)02/07/2026, 17:00
We investigate the spectral properties of the gluon propagator in the Landau gauge using quenched lattice QCD simulations. The central objective of this work is the extraction of the gluon spectral density, $\rho(m)$, by performing a numerical inversion. To handle the ill-posed nature of the reconstruction, we employ the Hansen-Lupo-Tantalo (HLT) method in conjunction with Gaussian Process...
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Cheng Zhang (Central China Normal University)02/07/2026, 17:00
Shear and bulk viscosities are fundamental transport coefficients that govern the hydrodynamic evolution of the quark--gluon plasma (QGP). They serve as crucial input for phenomenological and transport models employed to interpret experimental collective observables. In this talk, we present a systematic lattice QCD determination of the temperature dependence of shear and bulk viscosities in...
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Joannis Papavassiliou02/07/2026, 17:00
It has long been argued that the action of the Schwinger mechanism in the gauge sector of Quantum Chromodynamics leads to the generation of a gluon mass scale. Within this scenario, the analytic structure of the fundamental vertices is modified by the creation of scalar colored excitations with vanishing mass. In the limit of zero momentum transfer,
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these terms act as massless poles,... -
Dr Jianing Li (Heidelberg University), Jianing Li02/07/2026, 17:00
We investigate the transport properties of cold, dense nucleonic matter in the degenerate limit $T/\mu_B \ll 1$, with particular focus on the shear viscosity $\eta$ and bulk viscosity $\zeta$. Within a relativistic Fermi-liquid framework at the mean-field level, we start from the linearized relativistic Boltzmann equation in the relaxation-time approximation and impose the Landau--Lifshitz...
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Yao Ma (Technical University of Munich)02/07/2026, 17:10
With the increasing experimental discoveries of multiquark states in recent years, few-body problems have become increasingly important in hadron physics. The complex scaling method provides an effective approach to study bound and resonant states in few-body systems. In this talk, I will start from the leptonic systems with cleaner interactions, and give particular attention to tetralepton...
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Andre Baiao-Raposo (Ruhr-Universität Bochum)02/07/2026, 17:10
In this talk, I present progress on a first lattice QCD study of the $T_{cc}(3875)^+$ tetraquark via three-body finite-volume scattering formalism. This approach takes into account two-body $DD^*$ and three-body $DD\pi$ states and allows us to bypass issues due to pion exchange left-hand cuts that arise in purely two-body approaches. We investigate the isospin-0 $DD\pi$ system, where the...
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Viljami Juhani Leino (QTC, University of Southern Denmark)02/07/2026, 17:20
The interaction of heavy quarkonium in QGP within the potential non-relativistic QCD framework can be characterized in terms of transport coefficients related to the correlators of color electric fields connected by adjoint Wilson lines. We measure these correlators on the lattice with both gradient flow and multilevel algorithms and then invert the spectral function to attain the relevant...
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Georg Wieland (University of Graz)02/07/2026, 17:20
Gauge invariance requires physical states to be composite, even in the weak sector of the SM. The Fröhlich-Morchio-Strocchi (FMS) mechanism resolves this subtlety by predicting a one-to-one mapping between gauge and global degrees of freedom. Following the FMS framework, gauge-invariant composite operators for the Higgs, W/Z bosons, and weakly charged leptons are constructed by dressing the...
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Kim Maltman (York University (Canada))02/07/2026, 17:30
It is well known that, since the Operator Product Expansion (OPE) is at best an asymptotic expansion, non-perturbative effects in QCD include duality violating (DV) contributions not captured by the OPE. It is, in general, not clear at what dimension the presumably asymptotic nature of the OPE comes into play and use of the expansion is no longer valid, or to what extent explicit DV...
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Sipaz Sharma (Technical University Munich)02/07/2026, 17:30
We aim to clarify the experimentally observed near-degeneracy and decay patterns of the isospin, $I=1$, hidden-bottom tetraquarks $Z_b(10610)$ and $Z_b(10650)$ with quantum numbers $J^{P}=1^{+}$. We refer to them as $Z_b$ and $Z_b^{'}$, respectively. In particular, we find first evidence that the suppression of the decay of $Z_b^{'}$ to $B\bar{B^*}$ can be understood in the context of the...
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Ivan Horvath02/07/2026, 17:30Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
The rigorous concept of true (measure-based) effective spatial dimension
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for Dirac modes and quantum states became recently available, and quickly rose to be a major tool in analyses of the new thermal QCD phase: the infrared (IR) phase. These developments lead to intriguing general questions about when and how can pure noise combine with quantum mechanics to create a spatial structure with... -
Dr Xuan Li (Los Alamos National Laboratory)02/07/2026, 17:30
Heavy flavor (charm and bottom) production provides a stringent test of perturbative Quantum Chromodynamics (pQCD) and a sensitive probe of the transport properties of nuclear matter. Its experimental study, however, is particularly challenging due to low production rate and substantial background contributions. The future Electron-Ion Collider (EIC) will utilize high-luminosity high-energy...
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Sabarnya Mitra (Bielefeld University)02/07/2026, 17:40
For ascertaining the critical behaviour and related universality class of the QCD chiral phase transition, one needs to systematically approach the infinite-volume, chiral and continuum limits while exploring the temperature and quark mass dependence of the relevant order parameter $\textit{i.e.}$ the light chiral condensate $M_\ell$.
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As a stepwise procedure to this, we present here a... -
Gernot Eichmann02/07/2026, 17:50
We discuss recent progress in the solution of covariant five- and six-body equations to describe multiparticle systems. The basis of these calculations are permutation-group tools that allow one to construct efficient approximations by singling out the dominant momentum dependencies in the wave functions. The primary applications in QCD so far are the ‚LHCb pentaquarks‘ made of charm and...
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Vilija de Jonge (Institut für theoretische Physik an der Goethe Universität Frankfurt am Main)02/07/2026, 17:50
We present SU(3) lattice gauge theory results for the $\mathcal{O}(1/m_Q)$ hybrid spin-dependent and hybrid–quarkonium mixing potentials. Previous studies were limited to smaller quark–antiquark separations, leading to ambiguities and significant systematic uncertainties in Born–Oppenheimer effective field theory predictions for conventional and hybrid quarkonium spectra. Our new lattice...
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Ludovica Pirelli (Bergische Universität Wuppertal)02/07/2026, 18:00
Finite density lattice QCD usually relies on extrapolations in baryon
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chemical potential ($\mu_{B}$), be it Taylor expansion, T' expansion
or analytical continuation. However, their range of validity is difficult
to control. In the canonical formulation, the number of particles
$N$ is the parameter of the system, not $\mu_{B}$. There is by definition
no $\mu_{B}$ extrapolation. However, a... -
Jan M. Pawlowski (Heidelberg University)02/07/2026, 18:10
This talk will cover two long-standing questions in heavy-ion collisions: (i) how to extract the freeze-out points from experiment and (ii) what is the connection between freeze-out and QCD phase transition?
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In arXiv:2603.09336, we perform a direct first-principles-QCD-based analysis and demonstrate that the ratios of low-order baryon number susceptibilities intersect with the experimental... -
Paul Heinrich Pütz02/07/2026, 18:10
We investigate heavy quarkonium and the lowest-lying hybrid states within the framework of the Born-Oppenheimer effective field theory (BOEFT). For the first time, we evaluate the mass splittings from the $\mathcal{O}(1/m_Q)$ potentials computed in lattice QCD. These include both pure hybrid spin-dependent and quarkonium–hybrid mixing potentials.
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Our results indicate a sizeable mixing... -
02/07/2026, 19:30
Venue: Wyspa Słodowa 7
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https://maps.app.goo.gl/mz8kXNtJyRoswTt26 -
Johanna Erdmenger03/07/2026, 09:00
The AdS/CFT correspondence and its generalisations to gauge/gravity duality with confinement and chiral symmetry breaking are an important approach to investigating strongly couple gauge theories. I give an overview over the working mechanisms of gauge/gravity duality, in a top-down approach rooted in string theory. I also discuss how the duality may be used to calculate physical observables...
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Abhishek Mohapatra03/07/2026, 09:30
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Dr Roberto Mussa (INFN Torino)03/07/2026, 10:00
Until the verge of the new millenium, the simple quark-antiquark model was sufficient to describe the spectroscopy of heavy hadrons.
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Since the discovery of the so called XYZ mesons, the landscape of QCD bound states has dramatically changed, and not just in the proximity of open thresholds. In this review, I will show the most recent experimental advances in the field of doubly heavy... -
William Detmold03/07/2026, 11:00
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Andrea Shindler03/07/2026, 11:30
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Bernd-Jochen Schaefer, Jan-Erik Christian (Hamburg Observatory), Oleksii Ivanytskyi (University of Wroclaw), Risto Paatelainen, Wolfram Weise (TU Munich)03/07/2026, 12:00Nuclear and Astro-particle Physics
Chair: Oleksii Ivanytskyi
Panellists:
Wolfram Weise
Jan-Erik Christian
Risto Paatelainen
Bernd-Jochen SchäferQuestions to discuss during the RT:
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- How to interpret a possible peak in the squared sound speed of neutron star matter?
- How to probe colored degrees of freedom with the speed of sound of QCD matter?
- What is the takeaway message for unified quark-hadron theory? -
Shan Cheng (Hunan University, China)03/07/2026, 14:00
In this talk, I will first introduce the current research status of the two-meson light-cone distribution amplitudes ($2\pi$DAs), and then discuss their important applications in the phenomenological study of semileptonic decays of heavy mesons.
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Dr Marco Frasca03/07/2026, 14:00
We describe the technique developed by Bender, Milton and Savage to obtain the set of Dyson-Schwinger equations for quantum field theory in PDE shape. Starting from classical solutions, we show that exact solutions can be obtained for a quartic scalar field theory as a Taylor functional series. This same behavior is then obtained from Dyson-Schwinger equations giving Gaussian solutions in...
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Mr Kai-Fan Ye (Central China Normal University)03/07/2026, 14:00Talk
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Piotr Korcyl (Jagiellonian University)03/07/2026, 14:00
We present the results of the first simultaneous fit to experimental proton data at small values of Bjorken x involving multiple observables estimated in the framework of Color Glass Condensate. We combine Deep Inelastic Scattering (DIS) data measured at HERA and Single Inclusive Hadron Production (SIHP) recorded at RHIC and LHC. We demonstrate that using the LO Balitsky-Kovchegov evolution...
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Prof. Armen Sedrakian03/07/2026, 14:00
We investigate the impact of a strong first-order phase transition in dense QCD on compact-star structure and multimessenger observables. Hybrid equations of state are constructed by matching a covariant density functional description of nucleonic matter at low densities to a quark-matter equation of state at high densities, parameterized by the speed of sound. The resulting mass-radius...
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Dr Andreas Maier (IFAE)03/07/2026, 14:00
I present our latest high-precision results on the hyperfine splitting of heavy quarkonia in a P-wave state. I discuss applications and phenomenology for bottomonium, charmonium, and charmed B mesons. I briefly comment on hydrogen-like systems and how our calculation helped to resolve a discrepancy between recent predictions.
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Akihiro Shibata03/07/2026, 14:20
To investigate the physical origin of quark confinement, we consider an $SU(2)$ gauge-scalar model coupled with a scalar field in the adjoint representation. In this model, we point out that two distinct types of magnetic monopoles can be constructed in a gauge-invariant manner. One is the well-known 't Hooft-Polyakov magnetic monopole, which is composed of both the gauge and scalar fields....
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Emilie Passemar, Emilie Passemar03/07/2026, 14:30
In this talk, we present a recent work where we have constructed the $D$-wave isoscalar $\pi \pi/K\bar{K}$ coupled-channel Omnès matrix, formulated to satisfy unitarity, analyticity, and the appropriate asymptotic behavior. We employ a two-channel K-matrix model containing poles associated with the $f_2(1270)$ and $f'_2(1525)$ resonances. The resulting unitary scattering matrix, which...
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Michael Mandl (University of Graz)03/07/2026, 14:30
A proper understanding of QCD under extreme conditions such as high temperature and densities is of fundamental importance for the theoretical description of, e.g., heavy-ion collisions, neutron stars, and the early universe. However, the non-perturbative study of QCD at non-zero baryon density from the point of view of lattice field theory is hampered by the infamous sign problem, preventing...
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Markus Huber03/07/2026, 14:30
QCD has a rich spectrum that encompasses bound states of different types. In pure Yang–Mills theory the spectrum consists of glueballs, which are also expected to be realized in the presence of quarks. The former theory provides a clean theoretical setup in which the spectrum has been established by various methods, including functional equations. In a top‑down approach, these equations...
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Yasuhiro Yamaguchi (Tokyo Metropolitan University)03/07/2026, 14:30
In recent years, there has been growing interest in exotic hadrons that exhibit structures beyond the conventional hadron picture, where baryons are treated as three-quark states ($qqq$) and mesons as quark--antiquark pairs ($q\bar{q}$). In particular, in the charm sector, many exotic hadrons referred to as $XYZ$, $P_c$, and $T_{cc}$ states have been reported in accelerator experiments since...
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Dr Xiu-Lei Ren (Shandong University)03/07/2026, 14:30
We propose a systematic approach to study the nucleon-nucleon interaction by applying time-ordered perturbation theory (TOPT) to covariant chiral effective field theory. Diagrammatic rules of TOPT, for the first time, are worked out for particles with non-zero spin and interactions involving time derivatives. They can be applied to derive chiral potentials at any chiral order. The effective...
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Krzysztof Marek Kutak (Polish Academy of Sciences (PL))03/07/2026, 14:30
In this talk, I am going to present the first time study of jet-medium interactions in heavy-ion collisions with introduction of saturation and Sudakov effects with parameters tuned for upcoming forward calorimeter acceptances in experiments, in particular the ALICE FoCal detector. We focus on jet correlations by taking into account in-medium parton evolution using the BDIM equation that...
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Felipe Cesario Laterza Lopes (CBPF - Brazilian Center for Physics Research (BR))03/07/2026, 14:30
Charge-Parity Violation (CPV) is expected in 3-body charm decays. In particular, the process $D^+ \to K^-K^+\pi^+$ is an interesting channel to investigate, where an amplitude analysis is required to understand the dynamics of Final State Interactions (FSI) and the mechanisms that can generate CPV. This presentation will show the results of analysing recent data of the Large Hadron Collider...
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Nahuel Barrios (Universidad de la República)03/07/2026, 14:40
The Curci-Ferrari (CF) model in Landau gauge is a gluon mass extension of the standard Faddeev-Popov action. Its phenomenological motivation comes from the results of the lattice simulations for the gluon propagator, which display a finite value at vanishing momentum. Over the last 15 years, the model has been successfully employed to describe various features of the infrared regime of QCD. In...
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Andrey Kotov03/07/2026, 14:50
We discuss our results for the QCD thermodynamics obtained from the lattice simulations with exact chiral (overlap) fermions. We present topological and chiral observables and study the nature of the chiral phase transition. We also discuss the spectrum of overlap Dirac operator, Dirac mode localisation and their behaviour around the chiral phase transition.
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Franz Richard Sattler (University Bielefeld)03/07/2026, 14:50
QCD at large densities exhibits a moat regime in the scalar-pseudoscalar sector. The resolution of its dynamics is pivotal for the access to the onset of new phases including the potential critical endpoint of QCD. I report on a first self-consistent analysis of this regime, using the functional Renormalisation Group approach to QCD. Mapping out the moat regime, we find a potential...
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Piotr Bargiela03/07/2026, 15:00
In this talk, I present an analytic calculation of the all-loop bare perturbative part of the four-quark Bethe-Salpeter kernel using modern scattering amplitude methods (arXiv:2605.05349). We work to subleading order in the large number of quark flavors approximation of massless Quantum Chromodynamics, which simultaneously makes an all-loop calculation feasible, is systematically improvable,...
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Sofie Martins (University of Graz)03/07/2026, 15:00
Understanding the structure of glueballs, beyond their mass spectrum, is essential for characterizing these elusive states predicted by QCD. Gravitational form factors (GFFs), defined via the energy-momentum tensor (EMT), provide direct access to the energy, momentum, and mechanical structure of glueballs. Obtaining precise results for glueball observables from lattice QCD is challenging due...
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Angel Salvador Miramontes Lopez (University of Valencia)03/07/2026, 15:00
We compute the spectrum of light mesons, composed by up, down, and strange quarks, using a symmetry-preserving approximation that permits the inclusion of fully-dressed quark-gluon vertices in the key dynamical equations. This method is characterized by the use of the standard symmetric kinematic configuration as a seed in the corresponding Schwinger-Dyson equation, yielding finally the full...
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Antoni Szczurek03/07/2026, 15:00
We discuss the production of $D \bar{D}$ pairs in $e^+ e^-$ collisions, where $D$ refers to either $D^0$ or $D^+$ [1]. The continuum mechanism with the $t/u$-channel vector-meson $D^*$ exchanges are considered. The results of the calculation depend on the parameter of the off-shell form-factor for the virtual $D^*$ mesons. The $D^* D \gamma$ coupling constants are found from the $D^* \to D...
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116. Pseudoscalar Nucleon Form Factor: Spectral Representation, pQCD Sum Rules, and Isospin BreakingPablo Sanchez Puertas (University of Granada)03/07/2026, 15:00
The isovector pseudoscalar nucleon form factor is a fundamental probe of chiral symmetry breaking in QCD, and is currently under intensive scrutiny in lattice QCD. In this work, we propose a spectral representation that incorporates multiple physical regimes: chiral behavior at low energies, resonant contributions, a high-energy Regge tail, and pQCD asymptotics.
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By implementing pQCD... -
Ivan Polyakov (The University of Manchester (GB))03/07/2026, 15:00
Although hadron and nuclear physics diverged into distinct disciplines long time ago, their fundamental connection remains. In this talk, I will discuss what lessons gained from the heavy hadron studies can inform nuclear physics. I will also explore what future experimental measurements promise to strengthen the bridge between the two fields.
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Jon-Ivar Skullerud (Maynooth University)03/07/2026, 15:10
The classical U(1) axial symmetry of the QCD lagrangian is broken by
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the quantum anomaly, but may be effectively restored at high
temperature. Whether or not this effective restoration coincides with
the chiral transition has been the subject of much debate. Both
chiral and $U(1)_A$ symmetries can be investigated through degeneracies
of mesonic correlators and their associated... -
Boris Šarić (Department of Physics, Faculty of Science, University of Zagreb)03/07/2026, 15:20
Generalized transverse momentum distributions (GTMDs) provide the most complete description of the partonic structure of hadrons, encoding both spatial and momentum information. In this work, we compute the complete set of leading-twist gluon and sea-quark GTMDs in the small-$x$ (eikonal) approximation at vanishing skewness, $\xi = 0$.
In this limit, all gluon GTMDs can be expressed in...
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Vaibhav Chahar (Jagiellonian University, Poland)03/07/2026, 15:20
Instanton liquid model is believed to capture the main features of vacuum QCD dynamics. Recently, multiple predictions for hadron structure functions have been derived and compared with experimental measurements and lattice QCD calculations, finding a general agreement. In order to explore the precision of the instanton liquid model, one has to compare its predictions with non-perturbative...
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Adrien Florio03/07/2026, 15:20
Advances in numerical methods now enable versatile studies of 1+1 dimensional, potentially relativistic, models. In this talk I will review recent results on dynamics and the role of quantum correlations in different contexts. I will show how string breaking in 1+1 QED leads to a thermal medium, and how this thermalization process is driven by entanglement. I will also show how these methods...
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Eduardo Ferreira03/07/2026, 15:20
The internal structure of hadrons can be described in terms of structure functions that encode, for example, the momentum and spin distributions of their constituents. Parton distribution functions (PDFs) and Transverse Momentum Distributions (TMDs), for example, describe the quark and gluon momentum distributions inside a hadron. These distribution functions are, however, not easy to...
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Sebastian Dawid (Indiana University Bloomington)03/07/2026, 15:30
In the formal scattering theory, nuclear and hadronic resonances are described as poles of the reaction amplitude analytically continued to the complex energy plane. For an elastic $3 \to 3$ process, the associated Riemann surface has nontrivial topology—it contains infinitely many sheets, leading to a rich and largely unexplored behavior of pole trajectories. In this contribution, we plan to...
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László Kovács (Eötvös Loránd University)03/07/2026, 15:30
In high-energy collisions, by measuring the two-particle Bose–Einstein correlation function and considering its relationship with the phase-space density of the particle-emitting source, we can obtain information about the source function. While a Gaussian shape is commonly assumed, anomalous diffusion suggests Lévy-stable distributions, as observed in the PHENIX experiment for kaon-kaon and...
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Ken Suzuki (RCNP, The University of Osaka), Ken Suzuki (The University of Osaka (JP))03/07/2026, 15:30
Understanding how hadrons emerge from quarks and gluons is one of the central challenges in hadron physics. Although Quantum Chromodynamics successfully describes the strong interaction, the mechanisms governing hadron formation and excitation in the low-energy regime are still not fully understood. Recent experimental discoveries of various exotic and excited hadron states have revealed the...
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Prof. Pok Man Lo (University of Wroclaw)03/07/2026, 15:40
We introduce a confinement framework based on Coulomb‑gauge QCD to study the bulk properties of dense matter. At finite temperature, we determine the in‑medium Coulomb potential via its relation to the quark number susceptibility and extract a nonperturbative screening mass from its pole structure. The resulting potential reproduces key qualitative features observed in lattice QCD.
In...
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Daisuke Fujii (Japan Atomic Energy Agency)03/07/2026, 15:40
In this study, we investigate the role of the QCD scale anomaly in the internal pressure distribution of the pion, based on the trace-traceless decomposition of the energy-momentum tensor. Using gravitational form factors obtained in a top-down holographic QCD approach, we evaluate the energy and stress distributions of the pion in the light-front form. Our analysis shows that the scale...
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Jannis Gebhard (Heidelberg University)03/07/2026, 15:40
High-energy heavy-ion collisions create a quark–gluon plasma (QGP) with approximately restored chiral symmetry. Lattice QCD determines the chiral crossover temperature to be $T_c \simeq 156 \pm 1.5 \, \mathrm{MeV}$, below which chiral symmetry is spontaneously broken and pions emerge as pseudo–Goldstone bosons. Yet, this chiral transition—second order in the chiral limit—is absent from current...
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Dr CHOWDHURY AMINUL ISLAM (Aliah University)03/07/2026, 16:30
We investigate dilepton production from an isospin-asymmetric hot and dense medium in order to explore the role of isospin imbalance in electromagnetic spectral properties. We focus in particular on modifications of the dilepton production rate associated with the onset of pion condensation, which can occur in the presence of a finite isospin chemical potential. We employ the...
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Dr Francesco Giovanni Celiberto (UAH Madrid)03/07/2026, 16:30
Exotic multiquark states, such as tetraquarks and pentaquarks, provide a direct probe of hadron formation mechanisms beyond the conventional quark model. Their production offers a unique window into the interplay between perturbative dynamics and nonperturbative QCD effects. We present a multimodal fragmentation-based description of exotic multiquark production, developed within the novel...
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Marcela Peláez (Universidad de la República, Uruguay)03/07/2026, 16:30
We revisit the non-Abelian dipole problem through a novel semiclassical approach that incorporates fundamental infrared features of Yang-Mills theories in the Landau gauge. Specifically, our framework leverages the observation that the running coupling and the gluon propagator remain finite at infrared scales, with the latter exhibiting positivity violations, a clear signature of massless...
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Fabio Colamaria (INFN, Sezione di Bari (IT))03/07/2026, 16:30
Heavy-flavour quarks (charm and beauty) are excellent probes of the quark-gluon plasma (QGP), the deconfined state of matter produced in ultra-relativistic heavy-ion collisions. Produced on timescales shorter than the QGP formation time, heavy quarks traverse the entire medium evolution, losing energy through collisional and radiative processes and interacting with its partonic constituents....
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Yuki Amari03/07/2026, 16:30Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
$SU(N)$ magnets have been experimentally realized using ultracold atoms in an optical lattice. Theoretically, it has been proposed that spin-orbit coupling of cold atoms can be induced by applying laser beams to them [1]. Spin-$I$ spin-orbit-coupled Bose gases in an optical lattice can be seen as $SU(2I+1)$ magnets with a generalized Dzyaloshinskii–Moriya interaction, i.e., $SU(2I+1)$ chiral...
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Ivan Polyakov (The University of Manchester (GB))03/07/2026, 16:30Talk
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Emiko Hiyama03/07/2026, 16:30
One of the important subject in hypernuclear physics is to understand Baryon-Baryon interaction in unified way. However, due to the difficulty of YN and YY scattering experiment, it is crucial to study hypernuclear structure. In this conference, I report the present status on study of hypernuclear structure.
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Q' inich Coc (Heidelberg University)03/07/2026, 16:50
The measured hadron yields in heavy-ion collisions are well described by thermal particle production at temperatures close to the QCD pseudo-critical transition.
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However, if particles are produced in thermal equilibrium, then the in-medium effects, e.g., broadening of their spectral functions, must be taken into account. In this work, we study for the first time the effect of the thermal... -
Alexis Pompili (Universita e INFN, Bari (IT))03/07/2026, 17:00
Results from the investigation of the Υ(1S)ϕ(1020) invariant mass spectrum, with an event sample of pp collisions at 13TeV, collected by the CMS experiment at the LHC in 2016-18, will be presented.
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Christian Fischer (University of Giessen, Germany)03/07/2026, 17:00
We summarise recent theoretical results on the spectrum and properties of
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four-quark states obtained from functional QCD using Dyson-Schwinger and
Bethe-Salpeter equations. This framework is well suited to address and
discriminate between different internal compositions such as meson molecules
or states dominated by a diquark-antidiquark structure. We address the
flavour dependence... -
Andrea Rossi (INFN, Padova (IT))03/07/2026, 17:00
Measurements of strange and heavy-flavour baryon production in different collision systems play a central role in the study of hadronisation. They are particularly sensitive to the relative importance of concurrent hadronisation processes, such as string breaking and quark coalescence, and to how this changes from \ee to pp to nucleus--nucleus collisions, owing to the different partonic...
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Andrea Leonardo Guerrieri03/07/2026, 17:00
In this talk I will discuss our attempt to extract the QCD hadron spectrum directly from experimental and lattice data using the non-perturbative S-matrix Bootstrap. To this end, we developed a fitting strategy that combines Bootstrap consistency conditions with non-convex optimization techniques, and applied it to the case of $\pi\pi$ scattering.
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The resulting amplitude simultaneously... -
Pavlo Panasiuk, Mr Pavlo Panasiuk (University of Coimbra)03/07/2026, 17:00
Astrophysical observations, such as neutron star mass–radius measurements inferred from Shapiro delay and X-ray observation of NICER, provide stringent constraints on the electrically neutral equation of state of strongly interacting matter relevant for compact stars. Incorporating heavy-ion collision data, in particular collective flow measurements from the STAR experiment, into the Bayesian...
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Andrea Bulgarelli (University of Bonn)03/07/2026, 17:00Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
2+1D Maxwell–Chern–Simons (MCS) theory exhibits a nontrivial interplay between topological and dynamical features, while posing challenges for nonperturbative studies via Monte Carlo methods due to a sign problem. The Hamiltonian formulation provides a viable alternative, but requires a controlled truncation of the infinite-dimensional Hilbert space. This contribution focuses on the...
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Shuhei Minato (The University of Tokyo)03/07/2026, 17:10
The behavior of QCD matter at high baryon density remains a central issue in finite-density QCD, particularly in relation to how confined baryonic degrees of freedom evolve toward quark matter. A quark-hadron crossover is one possible scenario for this evolution, and quarkyonic matter provides a useful perspective on the intermediate-density regime, where quark-like bulk properties may appear...
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Ravindra Singh (Universita e INFN, Padova (IT))03/07/2026, 17:20
The study of heavy-flavour production and hadronisation provides crucial
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insights into the mechanisms of Quantum Chromodynamics (QCD) at the interface between the perturbative and non-perturbative regimes. Differential measurements of jets containing heavy flavour further shed light on QCD processes such as parton-shower evolution and hadronisation. In particular, angular correlations between... -
Alina Czajka (National Centre for Nuclear Research)03/07/2026, 17:30
Determining the transport properties of the quark–gluon plasma is one of the central goals of relativistic heavy-ion collision physics. In particular, transport coefficients such as the shear and bulk viscosities are needed. They are defined through Kubo formulae, which require real-time correlation functions of the stress–energy tensor. Understanding the analytic structure of these...
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Dr Rafal Maciula03/07/2026, 17:30
The production of open charm mesons in the fixed-target mode of the LHCb experiment provides a unique opportunity to study QCD dynamics at moderate center-of-mass energies and large Bjorken-$x$. In previous studies, the production of D mesons was investigated within the $k_T$-factorization approach, including the standard gluon–gluon fusion mechanism, the gluon–charm channel associated with...
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Jon-Ivar Skullerud, Dr Jonivar Skullerud (Maynooth University)03/07/2026, 17:30
We study the Landau gauge quark propagator and quark‑gluon vertex on a $(8 \ \text{fm})^4$ lattice across several kinematics such as soft gluon, hard reflection and general quark‑symmetric (orthogonal). We also present the status of our calculations of the vertex in linear covariant gauges.
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Enrique Rico Ortega (CERN)03/07/2026, 17:30Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
Understanding the confinement mechanism in gauge theories and the universality of effective string-like descriptions of gauge flux tubes remains a fundamental challenge in modern physics. We probe string modes of motion with dynamical matter in a digital quantum simulation of a (2+1) dimensional gauge theory using a superconducting quantum processor with up to 144 qubits, stretching the...
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Mr Adrian Wójcik (University of Wrocław)03/07/2026, 17:30
We revisit the derivation of the Rhoades-Ruffini bound on the upper limit for the maximum mass of neutron stars and find that the assumption made there for the onset of an ultimately stiff phase of high-density matter is not stringent. Relaxing this assumption and allowing for an onset of stiff non-nucleonic matter under neutron star constraints at the saturation density or below boost the...
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Mrs Veronika Prozorova (Czech Technical University in Prague)03/07/2026, 17:40
Heavy-flavor production in heavy-ion collisions provides a sensitive probe of parton interactions with the Quark-Gluon Plasma (QGP). Due to their large masses, heavy quarks (charm and bottom) are produced predominantly in the initial stage of the collision through hard scatterings and therefore experience the entire evolution of the medium. At STAR, heavy flavor is studied through direct...
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Jonas Wessely03/07/2026, 17:50
Within the framework of Landau-gauge QCD, we investigate the causal structure of fundamental propagators and evaluate their impact on physical observables, such as decay widths. Focusing on the light-quark sector, we present a self-consistent calculation of the quark spectral function obtained by solving the Dyson-Schwinger (gap) equation within a causal Rainbow-Ladder approximation. By...
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Diogo Boito (University of Sao Paulo)03/07/2026, 17:50
The QCD description of inclusive hadronic $\tau$ decays is the basis of one of the most precise extractions of the QCD coupling, $\alpha_s$, from experimental data. For a long time, analyses relied only on ALEPH and OPAL inclusive spectral functions, which were based on measurements of the dominant decay modes but necessitated Monte Carlo simulations for subleading decay channels. We have...
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Prof. Qun Wang (University of Science and Technology of China)03/07/2026, 17:50
The global spin polarization of hyperons in heavy-ion collisions have been investigated by including spin correlation effects among their constituent quarks. The available data on global spin polarizations of hyperons and spin alignments of vector mesons provide constraints on phase space functions of the spin polarization and correlation. These constraints can lead to inequalities under some...
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Mr Robin Kehr (Justus Liebig University Giessen)03/07/2026, 18:00Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
The QCD Anderson transition is believed to be connected to both, confinement and chiral symmetry breaking. We investigate the latter relation by studying the low-lying eigenmodes of the overlap operator in the background of gauge configurations with 2+1+1 quark flavors of twisted-mass Wilson fermions. The mobility edge, below which eigenmodes are localized, is estimated by the inflection point...
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Austin Alan Baty (University of Illinois Chicago)03/07/2026, 18:00
In heavy ion collisions, ultraperipheral collisions (UPCs) involve the interaction of two nuclei when their impact parameter is greater than the sum of their nuclear radii. The experimental study of UPCs has connection to many different fields of high-energy and nuclear physics, including beyond-the-Standard-Model searches and studies of nuclear structure. In this talk I will review a set of...
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Héctor Cancio Andel (IFAE)03/07/2026, 18:10
We compute the Form Factors of both neutral and charged pion using a non-perturbative running of the strong-coupling constant αs obtained using a double-dilaton Holographic QCD model. These form factors remain poorly
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understood in the intermediate-energy region, which marks the transition between low- and high-energy physics. In particular, experimental data for the neutral pion Form Factor... -
Jose Manuel Morgado (IFIC/Universidad de Valencia)03/07/2026, 18:10
A key ingredient for the study of meson structure via the Bethe-Salpeter equation beyond the rainbow-ladder approximation is the quark-gluon vertex in the complex Euclidean space. In this work, we address this problem. Using the framework of Schwinger-Dyson equations and employing the symmetric-vertex approximation, we derive dynamical equations for the vertex form factors in the soft-gluon...
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Prof. Beijiang Liu (Institute of High Energy Physics, CAS)04/07/2026, 09:00
Spectroscopy is an important way to understand how QCD gives rise to hadrons. Hadrons explicitly manifest the gluonic degrees of freedom, i.e. glueballs and hybrids, provide critical information on the strong force and QCD vacuum. Recent progress on the experimental studies of glueball and hybrids will be reported, including the glueball-like pseudoscalar X(2370), the 1-+ exotic states...
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Prof. Vicent Mateu (University of Salamanca)04/07/2026, 09:30
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Giuseppe Gagliardi04/07/2026, 10:00
Recent algorithmic and theoretical advances have considerably strengthened the role of lattice QCD in flavour physics. On the one hand, unprecedented levels of precision are now being achieved for several key observables. On the other hand, methodological developments are extending the reach of first-principles lattice calculations to previously inaccessible classes of processes. In this talk...
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Joshua Benabou (University of California, Berkeley / Lawrence Berkeley National Lab)04/07/2026, 11:00
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Nora Brambilla04/07/2026, 11:30Talk
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David Blaschke04/07/2026, 12:00Talk
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Timothy Burns
We consider how the recent CMS measurement of $2^{++}$ quantum numbers for $X(6600)$, $X(6900)$ and $X(7100)$ can help to reveal the internal structure of these apparent $cc\bar{c}\bar{c}$ tetraquark states. The experimental result is consistent with our earlier prediction that $X(6600)$ is a $2^{++}$ S-wave state, and it implies that a scalar partner state $0^{++}$ should also exist, and be...
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Dr Stefan Diehl (Justus Liebig University Giessen and University of Connecticut)Talk
QCD provides a rich spectrum of excited baryon states. The understanding of their internal structure is of essential importance for many fields of nuclear physics, such as the description of the nuclear forces, dense matter or neutrino-nucleus interactions. It is known, that Generalized Parton Distributions (GPDs) are a well established tool for characterizing the QCD structure of the...
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Rainer SommerHeavy Quarks
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Nisha Chahal
Finite-volume effects play a crucial role in studying the thermodynamics and
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phase structure of strongly interacting matter produced in relativistic heavy-ion
collisions. In this work, we investigate the influence of finite system size on the
thermodynamic properties of QCD matter within the framework of the Polyakov
Chiral Quark Mean Field Model. The thermodynamic observables,... -
Sushobhan Mandal (National Centre for Nuclear Research, Warsaw)
Direct photons, produced in initial hard scatterings or in a hot and dense medium, are an important element of the study of the quark-gluon plasma, the main goal of the ALICE experiment. Photons do not interact strongly and therefore escape the medium almost unchanged, carrying information about the properties of the matter at the space-time point of their emission. The prompt, high-energy...
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Tuhin S. Roy (Tata Institute of Fundamental Research)Strongly-Coupled Theories and Dark MatterTalk
We calculate the dynamically generated up quark mass in some QCD-like theories with F=3 light flavors, obtained from supersymmetric QCD perturbed via anomaly mediated supersymmetry breaking. We match the low-energy effective theory to the traditional chiral Lagrangian of QCD and determine the coefficients to next-to-leading order in chiral perturbation theory, while also varying the number of...
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Andrzej Wereszczynski (Jagiellonian University)Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
The Abelian Higgs model arises both in the truncation of the Electroweak theory and in effective models of the Strong Interactions. I will show that, contrary to the current expectation, dynamics of the vortices go much beyond the geodesic (moduli space) approximation. Due to the internal degrees of freedom (vibrational modes) , the vortices show much more complicated evolution characterized...
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Mr Arijit Das (Indian Institute of Science Education and Research, Thiruvananthapuram, India)Nuclear and Astro-particle PhysicsTalk
We construct an equation of state describing cold and dense matter in the core of neutron stars which includes an admixture of fermionic dark matter and incorporates nucleon effective masses derived from the relativistic Brueckner-Hartree-Fock (BHF) many-body approach within a relativistic mean-field model. Such a BHF-informed mixed-model approach increases stellar compactness, with...
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Prof. Francisco Matorras (Instituto de Fisica de Cantabria, Santander, IFCA (ES))Talk
Exact frequentist confidence regions based on the Neyman construction, including the Feldman–Cousins prescription, provide guaranteed coverage and a clear statistical interpretation. Despite their conceptual appeal, these methods are rarely used in realistic analyses, as closed form solutions are generally unavailable and toy Monte Carlo simulations become computationally prohibitive,...
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Dr PABLO GARCÍA ORTEGA (University of Salamanca)
The study of exotic hadrons, particularly those composed entirely of heavy quarks ($c$ and $b$), has become a central frontier in hadron spectroscopy. Experimentally, during the last years, the LHCb, CMS, and ATLAS collaborations have confirmed the existence of several resonances in the di-J/$\psi$ and J/$\psi\psi^\prime$ invariant mass spectra, such as the $T_{\psi\psi}(6200)$,...
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Satyajit Puhan (National Institute of Technology Jalandhar)Light QuarksTalk
In this work, we have extracted the unpolarized parton distribution function of pion using the neural network approach. The valence quark, gluon and sea quark distribution have been predicted by fitting with the Drell-Yan cross section data. We have calculated for the LO, NLO, $N^2$LO and N$^3$LO corrections using the Hoppet. Along with this, we have also predicted the average longitudinal...
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Vandan Patel (Sardar Vallabhbhai National Institute of Technology Surat, Gujarat, India)1Light QuarksPoster
Recent advances in hadron spectroscopy have uncovered a dense set of light and strange resonances, strengthening the case for systematic scrutiny of possible tetraquark interpretations. Here we analyze the mass spectra of fully light $(qq\bar{q}\bar{q})$, light-strange $(qq\bar{s}\bar{s})$, and fully strange $(ss\bar{s}\bar{s})$ tetraquark configurations within a Regge phenomenology framework,...
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Prof. Erez Zohar (Tel Aviv University)Focus subsession on Topology and confinement at the interface of particle physics and condensed matterTalk
Over the recent years, quantum information and entanglement based methods have been applied more and more widely to a variery of quantum many body models, mostly and condensed matter physics but in particle physics too. In particular, tensor network states form a family of many-body states suitable for relevant physics of interesting many-body models, through their built in entanglement...
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Prof. Jun Zeng (Hainan Normal University)Heavy QuarksTalk
Light-cone distribution amplitudes (LCDAs) of heavy hadrons play a central role in the QCD description of exclusive processes involving heavy quarks. They encode essential nonperturbative information and provide key inputs for phenomenological analyses based on factorization. In this talk, I will present recent progress on the structure and determination of heavy-hadron LCDAs, with emphasis on...
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Blaženka Melić (Rudjer Boskovic Institute)Talk
In this talk, I review recent progress in the theoretical description of heavy-hadron lifetimes across different flavor systems, ranging from heavy–light mesons and baryons to doubly heavy hadrons. I discuss how spectator effects, weak annihilation, and Pauli interference contribute to lifetime differences among hadrons with the same heavy quark, and how these effects can be quantified using...
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Mr Eduardo Salgado (University of Coimbra)DeconfinementPoster
We study the hadron-quark mixed phase within a two-phase model for symmetric and asymmetric matter. For the quark sector we employ the (2+1) Polyakov-extended Nambu-Jona-Lasinio model (PNJL) with vector interactions. We investigate how the hadronic equation of state affects the phase diagram and the thermodynamic properties inside the mixed phase. The behavior of isentropic trajectories in the...
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Wenqing Fan (University of Houston (US))DeconfinementTalk
Jets produced in high-energy collisions provide powerful probes of quantum chromodynamics across a wide range of energy scales. The internal structure of jets — jet substructure — encodes QCD dynamics from the perturbative partonic shower to the non-perturbative hadronization regime, and has become a rich area of study for both experimentalists and theorists. In heavy ion collisions,...
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Athira S (Indian Institute of Technology Jodhpur)
Observations of massive pulsars suggest that the central density of neutron stars can exceed several times the nuclear saturation density, creating a favourable environment for the appearance of exotic states, such as strange and non-strange baryons, meson condensates, and deconfined quark matter. The antikaon condensate is the most studied and plausible candidate among meson condensates....
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Prof. George Savvidy (Institute of Nuclear and Particle Physics, Demokritos National Research Center), Prof. Georgios Savvidis (Nat. Cent. for Sci. Res. Demokritos (GR))Strongly-Coupled Theories and Dark MatterTalk
New solutions of the sourceless Yang-Mills equation are describing the superposition of chromomagnetic vortices of oppositely oriented magnetic fluxes [1, 2]. These gauge field configurations have constant energy densities and are separated by potential barriers forming a complicated
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landscape. It is suggested that the solutions describe the condensate of chromomagnetic vortices and represent... -
Debsubhra Chakraborty
We present lattice QCD calculations of the masses of light nuclei, including the deuteron, dineutron, $^3$He, and $^4$He, using physical sea quarks and valence quark masses corresponding to pion masses in the range 140$-$700 MeV. At the physical point, the lowest finite-volume two-nucleon energy levels exhibit a bound deuteron and an unbound dineutron within uncertainties, while at heavier...
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Dr Kei Suzuki (JAEA)DeconfinementPoster
The properties of quarkonia in strong magnetic fields have been vigorously studied over the past 15 years (see Ref. [1] for a review). While the early studies mainly focused on situations near $eB\sim$0.1-1 GeV$^2$, which can be realized in heavy-ion collision experiments, recent lattice QCD simulations have enabled us to explore hadron physics in stronger magnetic fields that reach up to...
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Hardik Rathod (Sardar Vallabhbhai National Institute of Technology)QCD and New PhysicsTalk
In this work, we carry out a detailed study of the mass spectra and relative strong decay widths of hidden charm pentaquark states using the hypercentral constituent quark model (HCQM). The pentaquark system is modeled using Jacobi coordinates, where the interquark dynamics are governed by a hypercentral potential composed of a color Coulomb term and a confining interaction, along with...
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ubaid tantary (Prince Mohammad Bin Fahd University)Talk
N=4 supersymmetric Yang-Mills theory provides a clean theoretical arena for studying the weak-to-strong coupling crossover in a conformal plasma — a problem directly relevant to understanding the strongly coupled quark-gluon plasma produced in heavy-ion collisions. We present two complementary advances in the thermodynamics of this theory. First, we complete the weak-coupling expansion of the...
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Yilong Yang (Peking University)Nuclear and Astro-particle PhysicsTalk
Ab initio nuclear theory plays a central role in understanding how nuclear structure and dynamics emerge from underlying nuclear forces. The quantum Monte Carlo (QMC) approach represents one of the few ab initio methods capable of treating both short-range and long-range correlations, and has achieved remarkable success in light nuclei. However, due to the fermion sign problem, traditional QMC...
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Isaac Vidana HaroNuclear and Astro-particle PhysicsTalk
We construct the equation of state of hypernuclear matter and study the structure of neutron stars employing a chiral hyperon-nucleon interaction of the Jülich--Bonn group tuned to femtoscopic Λp data of the ALICE Collaboration, and ΛΛ and ΞN interactions determined from lattice QCD calculations by the HAL QCD Collaboration that reproduce the femtoscopic ΛΛ and Ξ−p data. We employ the...
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Dr MOHAMMED Ahmed (Taiz University)
Nonextensive statistical mechanics provides a natural extension of Boltzmann Gibbs thermodynamics for systems exhibiting long-range interactions and non-equilibrium effects. In this work, we apply a nonextensive framework to Quantum Chromodynamics and study the pressure and entropy density associated with the hadron-partonic phase transition. We show that the nonextensive parameter, which...
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Brijesh Kumar Srivastava (Purdue University (US))1DeconfinementPoster
The observed fluid behavior of the matter produced in heavy ion and pp collisions implies that the strings
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stretched between the constituents of the projectile and target should have a hard core giving rise to a repulsion between them. It is shown that in these collisions there are two critical string densities, one corresponding to the well studied percolation of strings and another to the... -
Wei-jie FuTalk
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Kei-Ichi Kondo (Chiba University)
We develop a geometric framework to analyze quark confinement in four-dimensional Euclidean SU(2) Yang--Mills theory in terms of finite-action topological defects. Starting from self-dual Yang--Mills configurations, we restrict to \emph{symmetric instantons} with spatial rotation symmetry so that dimensional reduction preserves conformal equivalence. This requirement maps \mathbb{R}^4 to...
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Mr Marco Carducci (Romatre University (INFN))QCD and New PhysicsTalk
Modular symmetry provides a powerful tool for predicting fermion masses and mixings. By generalizing the upper-half plane to the Siegel space, modular transformations act through symplectic maps, strongly constraining the allowed Yukawa couplings. In this scenario, I will present a successful quark model in which the CKM phase emerges near the CP-conserving fixed points of the fundamental...
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Prof. Xu-Guang HuangVacuum Structure and ConfinementTalk
Strong rotation and linear acceleration exist in nature and experiments, particularly in relativistic heavy-ion collisions. We discuss how these non-inertial effects influence the phase structure of QCD matter, with a focus on the chiral phase transition and the confinement–deconfinement transition. We also address several subtle theoretical issues associated with these effects, including the...
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Bruno Soares (IFT-UNESP (Instituto de Física Teórica))
Center vortices and monopoles are widely recognized, from both lattice simulations and continuum analyses, as fundamental nonperturbative structures in Yang–Mills theory. Effective descriptions of mixed oriented and nonoriented center vortices successfully account for the generation of flux tubes with the correct N-ality, while independent studies of correlation functions point to infrared...
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Werner PorodStrongly-Coupled Theories and Dark MatterTalk
We use a holographic model to survey the space of strongly coupled SU(Nc) gauge dynamics with QCD-like chiral symmetry breaking pattern for quarks in the fundamental representation. We systematically identify the light degrees of freedom (rho, sigma and pi mesons) that would make up the dark sector as a function of Nf, Nc and a common quark mass scale. We find seven distinct effective theories...
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Matti Jarvinen (ITP-CAS, Beijing)Strongly-Coupled Theories and Dark MatterTalk
The presence of Chern-Simons terms in holographic QCD is required by global flavor anomalies. These Chern-Simons terms can induce a spatial instability at nonzero density, known as the Nakamura-Ooguri-Park instability. I show that this instability is universal in a large class of bottom-up models of QCD matched to lattice data. It persists at surprisingly high temperatures and low baryon...
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DEBABRATA DEY (Institute of Physics, Bhubaneswar)Nuclear and Astro-particle PhysicsTalk
The gravitational wave $\omega$-mode spectrum offers a powerful probe of the ultra-dense interiors of neutron stars, providing insight into regimes beyond the reach of electromagnetic observations. In this study, we analyze the $\omega$ modes of compact stars containing quarkyonic matter. The quarkyonic phase—characterized by a smooth crossover between nucleonic matter and deconfined quarks...
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Harleen Dahiya
We study the QCD energy-momentum tensor (EMT) by parametrizing it into the usual non-perturbative distribution functions in momentum space for the quark sector. The light-cone framework has been utilized to study the valence quark distributions of proton in the diquark spectator model by considering all the feasible diquark pairs. The higher-twist distributions are also considered to gain...
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