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22/07/2024, 08:30
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Tobias Tsang (CERN)22/07/2024, 08:50
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Gilberto Colangelo22/07/2024, 09:00
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Luigi Del Debbio (The University of Edinburgh (GB))22/07/2024, 11:15
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Gerald Dunne (University of Connecticut)22/07/2024, 15:00
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22/07/2024, 19:00Poster
The ground state scalar D-mesons, the $D^*_0 (c\bar{l})$ and $D^*_{s0}(c\bar{s})$, do not adhere to expectations and have sparked much theoretical discussion. Although these mesons have been explored in previous lattice studies of $D\pi$ and $DK$ scattering, there are still questions about the underlying physics in this sector. In this poster, we report on a study where finite-volume spectra...
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22/07/2024, 19:00Poster
The evolution of a particle in the Quark-Gluon Plasma is determined by transport coefficients. Especially the diffusion of a heavy adjoint quark or quarkonium can be measured from the correlator of two chromoelectric field operators connected by a static Wilson line in the adjoint representation. The first mass correction is then given by using chromomagnetic fields instead. However, the...
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22/07/2024, 19:00Poster
Determining the form factors for Semileptonic Decay processes on the lattice is essential for understanding CKM matrix elements. Some of these decay processes are $\Sigma_b \rightarrow \Sigma_c$, $\Omega_b \rightarrow \Omega_c$, and $\Xi_c \rightarrow \Xi$, the later one is observed in experiments like Belle and ALICE. Meson decays are extensively studied on the lattice, however baryon decays...
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22/07/2024, 19:00Poster
Quantum simulators offer great potential for investigating the dynamical properties of quantum field theories. However, a key challenge is the preparation of high-fidelity initial states for these simulations. In this study, we focus on ground states and explore how information about their static properties, which can be efficiently obtained using classical methods such as lattice-based...
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22/07/2024, 19:00Poster
Semileptonic $B_{(s)}$ decays are of great phenomenological interest
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because they allow to extract CKM matrix elements or test lepton flavor
universality. Taking advantage of existing data, we explore extracting
form factors for vector final states using the narrow width
approximation. Based on RBC-UKQCD's set of 2+1 flavor gauge field
ensembles with Shamir domain-wall fermion and... -
22/07/2024, 19:00Poster
The use of quantum computers could circumvent the complex action problem hampering first-principles studies of gauge theories in real time or at finite density. One of the main bottlenecks of quantum computers is the limited number of available qubits. One approach to mitigate this bottleneck is the discretization of continuous gauge groups to their discrete subgroups, which introduces...
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22/07/2024, 19:00Poster
Simulating higher-dimensional lattice models remains a significant challenge, spurring interest in advanced renormalization group (RG) methods for tensor-network states. One such model we study here is the two-dimensional XY model. This theory has been understood greatly and undergoes a BKT type of phase transition. Adding an extra spin-nematic interaction term with period, the modified XY...
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22/07/2024, 19:00Poster
In this work, we present a full lattice computation for the NLO contribution to the HVP of the muon g-2. First, we study the time-momentum representation (TMR) of the three kernels needed to compute the three different NLO HVP diagrams, following the work of Balzani, Laporta and Passera. For the HO corrections including extra photon or lepton lines, we present an analytical series of...
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22/07/2024, 19:00Poster
Low-lying Dirac modes become localized at the finite-temperature
transition in QCD and other gauge theories, indicating a connection
between localization and deconfinement. This phenomenon can be
understood through the "sea/islands" picture: in the deconfined phase,
modes become trapped on "islands" of Polyakov loop fluctuations within
a "sea" of ordered Polyakov loops.To test the...
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22/07/2024, 19:00Poster
Understanding baryon-baryon interactions is key in nuclear physics because these interactions form the foundation of atomic nuclei. Despite many experiments, the deuteron is still the only confirmed dibaryon bound state, with recent evidence for an unstable light dibaryon, d*(2380). Other dibaryons, if any exist, remain undiscovered. Our study employs state-of-the-art lattice QCD techniques to...
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22/07/2024, 19:00Poster
When gravitational waves travel from their source to an observer, they interact
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with matter structures along their path, causing distinct deformations in their waveforms. In
this study we introduce a novel theoretical framework for wave optics effects in gravitational
lensing, addressing the limitations of existing approaches. We achieve this by incorporating
the proper time technique,... -
22/07/2024, 19:00Poster
In this poster I will focus on the study of the leptonic channel $B^- \rightarrow \ell^- \bar \nu$
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at next-to-leading order in QED. The future improvements of experimental measurements of this channel require a reliable theory prediction, hence a careful theoretical estimate of QED corrections. The multi-scale character of this process requires an appropriate effective theory (EFT)... -
22/07/2024, 19:00Poster
Quantum simulation holds promise of enabling a complete description of high-energy scattering processes rooted in gauge theories of the Standard Model. A first step in such simulations is preparation of interacting hadronic wave packets. To create the wave packets, one typically resorts to adiabatic evolution to bridge between wave packets in the free theory and those in the interacting...
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22/07/2024, 19:00Poster
Semiconductor spin qubits are ideal for scalable quantum computing due to their long coherence times and compatibility with existing semiconductor fabrication technology. For quantum simulation of lattice gauge theories, the encoding of fermionic d.o.f. into qubits becomes complicated in higher dimensions. Furthermore, encoding with bosonic d.o.f. in a digital scheme introduces additional...
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22/07/2024, 19:00Poster
Quantum link models (QLMs) are generalizations of Wilsonian lattice gauge theory which can be formulated with finite-dimensional link Hilbert spaces, and which can be embedded onto local spin Hamiltonians for efficient quantum simulation by exact imposition of the Gauss Law constraint. Previously, SO(3) QLMs have been studied in 1+1d and shown to reflect key properties of QCD and nuclear...
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22/07/2024, 19:00Poster
We report on the nonperturbative calculation of the inclusive decay rate for semileptonic decays of the $D_s$ meson from lattice QCD. We present a short overview on how the Chebyshev approximation can be employed in order to obtain predictions for the total inclusive decay rate from hadronic correlators generated from lattice simulations. We further present first estimates on the systematic...
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22/07/2024, 19:00Poster
The present work is about a new method to sample the quantum fluctuations of relativistic fields by means of a pseudo-Hamiltonian dynamics in an enlarge space of variables. The proposed approach promotes the fictitious time of Parisi-Wu stochastic quantisation to a true physical parameter controlling a deterministic dynamics. The sampling of quantum fluctuations is guaranteed by the presence...
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22/07/2024, 19:00Poster
We study an application of supervised learning to infer two-point lattice correlation functions at one input mass from correlator data computed at a different target mass. Learning across the mass parameters could potentially reduce the cost of expensive calculations involved in light Dirac inversions, which can be a computational bottleneck for performing simulations of quantum chromodynamics...
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Zohreh Davoudi (University of Maryland)23/07/2024, 09:00
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Luigi Del Debbio (The University of Edinburgh (GB))23/07/2024, 11:15
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Gerald Dunne23/07/2024, 14:00
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Gilberto Colangelo23/07/2024, 16:00
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Luigi Del Debbio (The University of Edinburgh (GB))24/07/2024, 09:00
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Zohreh Davoudi (University of Maryland)24/07/2024, 11:15
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Gerald Dunne24/07/2024, 15:30
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Zohreh Davoudi (University of Maryland)25/07/2024, 09:00
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Gilberto Colangelo25/07/2024, 11:15
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Luigi Del Debbio (The University of Edinburgh (GB))25/07/2024, 14:00
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25/07/2024, 15:30
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Gerald Dunne26/07/2024, 09:00
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Gilberto Colangelo26/07/2024, 11:15
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Zohreh Davoudi (University of Maryland)26/07/2024, 13:45
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Tobias Tsang (CERN)
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