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27/06/2022, 09:00
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Jeff Dandoy (University of Pennsylvania (US))27/06/2022, 09:30
Plenary (ATLAS+CMS)
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Konstantinos Theofilatos (National and Kapodistrian University of Athens (GR))27/06/2022, 10:00
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Cumrun Vafa (Harvard University)27/06/2022, 11:00
We explain how the Swampland criteria combined with observational data and in particular a small dark energy, leads to the prediction of a single mesoscopic dimension of length in the micron range. We also explain how this can lead to a unification of cosmological and electroweak hierarchies.
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Claudia de Rham (Imperial College London)27/06/2022, 11:30
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Ruth Gregory (King's College London)27/06/2022, 12:00
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Carlo Angelantonj (Universita e INFN Torino (IT))27/06/2022, 12:30
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Qaisar Shafi27/06/2022, 14:30
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Vassilis Spanos (National and Kapodistrian University of Athens)27/06/2022, 15:00
In this talk we will revisit supergravity models with dark
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matter candidate particles like neutralino and gravitino.
Moreover, we will discuss the possibility that primordial black
holes play the role of the dark matter of the Universe. -
Andrew Mogan27/06/2022, 16:00
The MicroBooNE collaboration recently released a series of measurements aimed at investigating the nature of the excess of low energy electromagnetic interactions observed by the MiniBooNE collaboration. In this talk, we will present the latest results from both a search of single photons in MicroBooNE, as well as a series of three independent analyses leveraging different reconstruction...
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Dr Shoaib Munir (ICTP-EAIFR, Rwanda)27/06/2022, 16:00
The Higgs sector of the Next-to-Minimal Supersymmetric Standard Model can accommodate explicit CP-violating phases at the tree level, unlike the minimal scenario. In particular, the phase of the parameter that governs the singlet-singlino mass is relevant for the phenomenology of the dark matter in the model also, when R-parity is conserved. A small magnitude of this parameter can yield a...
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Jackson Carl Burzynski (Simon Fraser University (CA))27/06/2022, 16:00
Various theories beyond the Standard Model predict new, long-lived particles with unique signatures which are difficult to reconstruct and for which estimating the background rates is also a challenge. Signatures from displaced and/or delayed decays anywhere from the inner detector to the muon spectrometer, as well as those of new particles with fractional or multiple values of the charge of...
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George Kodaxis (Greek)27/06/2022, 16:20
We discuss features of the inflaton potential that can lead to a strong enhancement of the power spectrum of curvature perturbations. Such features may be either inflection points or steep decreases of the potential and enhance the power spectrum of the curvature perturbations by several orders of magnitude at certain scales. In particular, steep step-like features also produce prominent...
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Pawel Guzowski (The University of Manchester)27/06/2022, 16:20
MicroBooNE is an 85-tonne active mass liquid argon time projection chamber (LArTPC) at Fermilab. It has excellent calorimetric, spatial and energy resolution and is exposed to two neutrino beams, which make it a powerful detector not just for neutrino physics, but also for Beyond the Standard Model (BSM) physics. The experiment has competitive sensitivity to heavy neutral leptons possibly...
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Blaž Leban (Jozef Stefan Institute (SI))27/06/2022, 16:20
Many theories beyond the Standard Model predict new phenomena, such as $Z'$, $W'$ bosons, or heavy leptons, in final states with isolated, high-pt leptons (e/mu/tau). Searches for new physics with such signatures, produced either resonantly or non-resonantly, are performed using the ATLAS experiment at the LHC. This includes a novel search that exploits the lepton-charge asymmetry in events...
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Juntaro Wada (University of Tokyo)27/06/2022, 16:40
This talk is based on our recent paper arXiv:2109.10093.
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The MUonE collaboration intends to assess the hadronic vacuum polarization contribution to the muon $g-2$ via the elastic scattering process $\mu e \to \mu e$. I will discuss the prospects of probing the $L_{\mu}−L_{\tau}$ gauge boson at the MUonE experiment. The $L_{\mu}−L_{\tau}$ gauge boson $Z′$, which can explain the... -
Philipp Mogg (Ludwig Maximilians Universitat (DE))27/06/2022, 16:40
The presence of a non-baryonic Dark Matter (DM) component in the Universe is inferred from the observation of its gravitational interaction. If Dark Matter interacts weakly with the Standard Model (SM) it could be produced at the LHC. The ATLAS experiment has developed a broad search program for DM candidates in final states with large missing transverse momentum produced in association with...
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Andrew Eberhardt (Stanford University)27/06/2022, 16:40
The nature of dark matter, one of the major components of the cosmic
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standard model, remains one of the outstanding problems in physics. One
interesting model is scalar field dark matter (SFDM), which fits naturally
into observations in both particle physics and cosmology. Simulations and
calculations using SFDM often use a classical field approximation (MFT) of
the underlying quantum... -
Dr Joel Jones-Perez27/06/2022, 17:00
The Dimension-5 Seesaw Portal is a Type-I Seesaw model extended by d=5 operators involving the sterile neutrino states, leading to new interactions between all neutrinos and the Standard Model neutral bosons. In this work we focus primarily on the implications of these new operators at the GeV-scale. In particular, we recalculate the heavy neutrino full decay width, up to three-body decays. We...
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Devanshu Kiran Panchal (University of Texas at Austin (US))27/06/2022, 17:00
Various Supersymmetry (SUSY) scenarios, including split SUSY and anomaly or gravity-mediated SUSY-breaking scenarios, lead to signatures with long-lived particles. Searches for these processes may target either the long lived particle itself or its decay products at a significant distance from the collision point. These signatures provide interesting technical challenges due to their special...
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Mr Heerak Banerjee (Technical University of Munich)27/06/2022, 17:00
The quest for Dark Matter (DM) and its nature has been puzzling scientists for nearly a century. This puzzle has engendered theories that span nearly hundred orders of magnitude in mass scales with widely contrasting nature. It has also motivated decades of experimental efforts correspondingly different in the wide variety of their target masses, observables, technologies and interpretations....
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Sreemanti Chakraborti (LAPTh Annecy)27/06/2022, 17:20
We study a minimal model for light scalar dark matter (DM) which requires a light scalar mediator to address the core-cusp problem as well as to interact with the standard model. We focus on the Breit-Wigner resonance for the DM annihilation and self-scattering channels. The thermally-averaged annihilation cross-section of DM has strong temperature dependence, whereas its energy exchange by...
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Dr Daniela KOCK ( Sussex)27/06/2022, 17:20
The direct production of electroweak SUSY particles, including sleptons, charginos, and neutralinos, is a particularly interesting area with connections to dark matter and the naturalness of the Higgs mass. The small production cross sections lead to difficult searches, despite relatively clean final states. This talk will highlight the most recent results of searches performed by the ATLAS...
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Ulrike Fahrendholz27/06/2022, 17:20
Proton Decay is a main consequence of Baryon Number Violation and is predicted in several Grand Unified Theories (GUTs). It is one of the conditions to explain the asymmetry of matter and anti-matter in our universe. One of the main proton decay channels favored by supersymmetric GUTs is p to K$^+$ and $\bar{\nu}$. By now, Super-Kamiokande has set a lower lifetime limit of $5.9 \times 10^{33}$...
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Ioanna Stamou (National and Kapodistrian University of Athens)27/06/2022, 17:40
We study models of cosmic inflation in order to explain the production of primordial black holes (PBHs), which can amount of a significant fraction of dark matter (DM) in the universe and the induced gravitational waves (GWs). In particular, we present mechanisms which lead to an enhancement of the scalar power spectrum at small scales. This amplification can explain the generation of PBHs and...
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Yi-Lin Yang (Southern Methodist University (US))27/06/2022, 17:40
Supersymmetry (SUSY) provides elegant solutions to several problems in the Standard Model, and searches for SUSY particles are an important component of the LHC physics program. Naturalness arguments for weak-scale supersymmetry favour supersymmetric partners of the gluons and third generation quarks with masses light enough to be produced at the LHC. This talk will present the latest results...
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Dr Andrea Serafini (Università di Padova and INFN Padova, Italy )27/06/2022, 17:40
The Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kton multi‑purpose underground liquid scintillator detector currently under construction at a baseline of about 52.5 km from eight nuclear reactors in the Guangdong Province of South China. By featuring a 78% photon sensor coverage achieved via a primary calorimetry system consisting of 17,612 20‑inch PMTs and an additional...
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IPSITA RAY27/06/2022, 18:00
The Cabibbo-Kobayashi-Maskawa (CKM) element $V_{ub}$ is an important input parameter for the theoretical predictions of many observables in the flavor sector as it is responsible for the CP violating phase within the Standard Model. There exists a long standing tension between the tree-level determinations using the inclusive $B \to X_u l \nu$ decays (where $X_u$ refers to sum over all final...
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Weitao Wang (University of Iowa (US))27/06/2022, 18:00
With the pp collision dataset collected at 13 TeV, detailed measurements of Higgs boson properties can be performed. The Higgs kinematic properties can be measured with increasing granularity and interpreted to constrain beyond-the-Standard-Model phenomena. This talk presents the measurements of the Higgs boson fiducial and differential cross sections exploiting various Higgs boson decays, as...
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Christopher Verhaaren (Brigham Young University)27/06/2022, 18:00
The twin Higgs framework offers an explanation of the little hierarchy problem while remaining consistent with the bounds on new colored states. This scenario also offers a concrete model of richly varied hidden sectors. Typically, the twin sector includes a SU(3) confining force which binds the twin quarks into hadrons. I outline how twin color can be spontaneously broken. In this case the...
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Julian Heeck27/06/2022, 18:20
Experimental hints for lepton-flavor universality violation in the muon's magnetic moment as well as neutral- and charged-current $B$-meson decays require Standard-Model extensions by particles such as leptoquarks that generically lead to unacceptably fast rates of charged lepton flavor violation and proton decay. We propose a model based on a gauged $U(1)_{L_\mu-L_\tau}$ that eliminates all...
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Javier Montejo Berlingen (CERN)27/06/2022, 18:20
The study of the Higgs boson properties provides a unique window for the discovery of new physics at the LHC. New phenomena can in particular be revealed in the search for rare, lepton-flavor-violating or exotic decays of the Higgs boson, as well as in its possible couplings to hidden-sector states that do not interact under Standard Model gauge transformations. This talk presents recent...
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Kare Fridell27/06/2022, 18:40
If Majorana neutrino masses are not generated via the dimension 5 Weinberg operator, the next simplest solution would be to generate them at dimension 7. We present a comprehensive analysis of dimension 7 lepton number violating (LNV) SMEFT operators and their phenomenological consequences for a range of experimental searches. Comparing low-scale observables such as flavour violating rare...
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Tong Li (Shandong University (CN))27/06/2022, 18:40
The discovery of the Higgs boson with the mass of about 125 GeV completed the particle content predicted by the Standard Model. Even though this model is well established and consistent with many measurements, it is not capable to solely explain some observations. Many extensions of the Standard Model addressing such shortcomings, including several SUSY benchmark models, introduce additional...
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Merlin Reichard27/06/2022, 19:00
In many theories dark matter is assumed to be a Majorana fermion, for which the electromagnetic anapole moment can induce an effective interaction with targets in direct detection experiments. After discussing briefly the experimental limit on the anapole moment of a DM candidate using direct detection data, we will formalize theoretical predictions for this coupling for general P breaking...
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Nobuchika Okada28/06/2022, 09:00
Although the Standard Model (SM) is currently the best theory for describing elementary particle phenomena, it still suffers from several problems, such as neutrino masses and mixings, dark matter, cosmic inflation, the origin of the matter-antimatter asymmetry, and the strong CP-problem. I will discuss a unified model that can offer a solution to them.
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Ignatios Antoniadis (UPMC)28/06/2022, 09:30
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Dieter Lust (Max-Planck-Institut fuer Kernphysik (MPI))28/06/2022, 10:00
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Constantin Bachas (Ecole Normale Supérieure, Paris)28/06/2022, 11:00
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Takeo Moroi (U. Tokyo)28/06/2022, 11:30
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Prof. Subir Sarkar (University of Oxford (GB))28/06/2022, 12:00
The standard model of cosmology is based on the assumption that the universe is (statistically) isotropic and homogeneous. The dipole anisotropy of the CMB must then be attributed to our peculiar motion, due to local inhomogeneity, wrt the cosmic rest frame in which the CMB looks isotropic. If so, there should be a corresponding dipole in the skymap of high redshift sources. Using catalogues...
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Ilias Kyritsis (University of Crete (GR) and APC (FR))28/06/2022, 12:30
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Sabrina Pasterski (MIT CMS)28/06/2022, 14:30
We present the motivation for the celestial holography program, recent progress, and ongoing questions!
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Herve Partouche (Centre National de la Recherche Scientifique (FR))28/06/2022, 15:00
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Lukas Novotny (Czech Technical University in Prague (CZ))28/06/2022, 16:00
The ATLAS experiment has performed measurements of $B$-meson rare decays proceeding via suppressed electroweak flavour changing neutral currents, and of mixing and CP violation in the neutral $B^0_s$ meson system. This talk will focus on the latest results from the ATLAS collaboration, such as rare processes $B^0_s \to \mu \mu$ and $B^0_d \to \mu \mu$, and CP violation in $B^0_s \to J/\psi...
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Kang Sin Choi28/06/2022, 16:00
Global consistency condition of string theory plays important role in obtaining vacua of string theory.
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It does not only restrict possible vacua, but also suggest that many vacua are connected, if the systems are protected by SUSY.
We visit some examples in heterotic orbifold and F-theory, focusing on the small instanton transitions and their duals. -
Andrea Trapote Fernandez (Universidad de Oviedo (ES))28/06/2022, 16:00
Recent results on searches for supersymmetric partners of top quarks and gluons with the CMS detector are presented. The results are based on proton-proton collisions recorded at $\sqrt{s} = 13 ~TeV$ with the CMS detector using the full Run 2 dataset of $138 ~fb^{-1}$.
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Dimitrios Karamitros28/06/2022, 16:20
We study implications of non-local interactions, assuming an effective gaussian localization of interaction vertices. We present the analytical form of a transition amplitude, and discuss possible phenomenological applications of this approach.
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Noah Alexander Zipper (University of Colorado Boulder (US))28/06/2022, 16:20
Results from the CMS experiment are presented for electroweak production of supersymmetric partners in hadronic final states. The searches use proton-proton collision data with luminosity up to 138 fb-1 recorded by the CMS detector at center of mass energy 13 TeV during the LHC Run 2.
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Mr Atsushi Hinata (Waseda University)28/06/2022, 16:20
This talk is based on arXiv:2112.10337. We study the seesaw mechanism in the supersymmetric standard model (SSM) with the $Z_3$ symmetry called Matter triality ($M_3$). The Abelian discrete symmetry prohibits the baryon number violation operators at the (non-)renormalizable level, which ensures the proton longevity. The cubic coupling by the right-handed neutrinos generates the Majorana mass...
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Anil Thapa (University of Virginia)28/06/2022, 16:40
Experimental hints for lepton flavor universality violation in beauty-quark decay both in neutral- and charged-current transitions require an extension of the Standard Model for which scalar leptoquarks (LQs) are the prime candidates. Besides, these same LQs can resolve the long-standing tension in the muon and the recently reported deviation in the electron $g-2$ anomalies. These tantalizing...
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Dr Vasiliki Mitsou (Univ. of Valencia and CSIC (ES))28/06/2022, 16:40
The MoEDAL experiment at the LHC has been designed to search for highly ionising avatars of New Physics such as magnetic monopoles and dyons. Hypothetical stable particles of single or multiple electric charge, that arise in models of supersymmetry, quirks, strangelets, Q-balls, or as black-hole remnants, can be detected in MoEDAL. The recent analysis of a prototype nuclear track detector has...
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Osmin Lacombe (YITP, Kyoto University)28/06/2022, 16:40
In this talk, I will present an explicit string realisation of a cosmological inflationary scenario within the framework of type IIB flux compactifications in the presence of three magnetised D7-brane stacks. Inflation takes place around a metastable de Sitter vacuum. The scalar potential of the inflaton, identified with the volume modulus, exhibits a very shallow minimum. Inflation ends due...
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Konstantinos Siampos (National and Kapodistrian University of Athens (GR))28/06/2022, 17:00
We consider a class of integrable deformations of current algebra/coset CFTs by current/parafermion bilinears, known as \lambda-deformed models. We dynamically promote the deformation parameters by introducing time as an extra coordinate and we enforce conformal invariance at one-loop order. The derived model obeys a system of non-linear second-order ordinary differential equations and by...
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Pedro Fernandez Manteca (Rice University (US))28/06/2022, 17:00
This talk reviews recent measurements of multiboson production using CMS data. Inclusive and differential cross sections are measured using several kinematic observables.
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Daniele Rizzo (NCBJ)28/06/2022, 17:00
We use the framework of asymptotically safe quantum gravity to derive predictions for New Physics (NP) models with an extra U(1)' symmetry as a solution to the b $\rightarrow$ s flavor anomalies. We study three different (but similar) models with vector-like (VL) fermions and a scalar whose vev breaks the U(1)' symmetry. The flavor-violating coupling of the new gauge boson Z' with the b and s...
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Pedro Alvarez28/06/2022, 17:20
We present a GUT model based on the conformal superalgebra su(2,2|N). The model is based on an implementation of supersymmetry where matter fields are in the adjoint representation. We will discuss some of the particularities of the model and we will compare to other susy and nonsusy GUT schemes.
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Cem Salih Un (Bursa Uludag University)28/06/2022, 17:20
Inspired by the latest measurement of muon anomalous magnetic moment (muon g-2) by FermiLab we explore the implications about muon g-2 of supersymmetric grand unified theories (GUTs) in a class with non-universal gaugino masses at the GUT scale. The discrepancy between the Standard Model (SM) predictions and the experimental results in muon g-2 can be solved by the contributions from the...
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Roman Pasechnik (Lund university)28/06/2022, 17:20
I would like to present an intriguing new perspective into such fundamental questions as 1) the origin of the gauge interactions in the Standard Model (SM), and 2) the origin of the quark, lepton and neutrino families' replication and their fundamental properties experimentally observed in Nature. These questions can be addressed by tying together in a common framework both flavour physics and...
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Mario E. Gomez28/06/2022, 17:40
We found SUSY contribution to the muon g-2 can be compatible with its observed value. In models where Supersymmetry is broken though Supergravity this can be achieved if the soft masses are generated by TeV gaugino masses and light gravitinos. These scenarios provide a natural explanation for not observing lepton flavor violation (LFV) on charged leptons , even if the soft scalar masses are...
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George Tringas (National Technical University of Athens)28/06/2022, 17:40New Developments in String Theory
We discuss flux compactifications of massive Type IIA string theory on G2 spaces with O2/O6-planes to three dimensions. We start by presenting the setup of allowed fluxes, internal geometry and equations of motion and after compactification we achieve N=1 and N=0 $\text{AdS}_3$ vacua with scale that can be parametrically decoupled from the KK modes. We use the smeared approximation description...
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Luca Paolo Wiggering (University of Münster)28/06/2022, 17:40
We discuss the one-loop SUSY-QCD corrections to the neutralino relic density for pMSSM scenarios with light stops where we focus on stop annihilation into gluons and light quarks including Sommerfeld enhancement effects. These corrections are important as stop (co)-annihilation becomes the dominant contribution to the relic density for scenarios with a small mass difference between the...
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Shufang Su (University of Arizona)28/06/2022, 18:00
Two Higgs Doublet Models (2HDM) provide a simple framework for new physics models with an extended Higgs sector. The current LHC results, including both direct searches for additional non-Standard Model (SM) Higgs bosons, as well as precision measurements of the SM-like Higgs couplings, already provide strong constraints on the 2HDM parameter spaces. In this work, we examine those constraints...
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Pascal Anastasopoulos (University of Vienna)28/06/2022, 18:00
This talk focuses on a collection of ideas that explain why the Standard Model (SM) should be completed by a graviton, graviphotons, axions, and neutrinos (and maybe other stuff) emerging from a hidden sector.
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This task will be accomplished in a novel framework, where the SM is coupled to a holographic theory. The new particles will be composites and, in almost all cases, are distinct... -
Tobias Felkl (University of New South Wales)28/06/2022, 18:00
There is growing evidence for lepton-flavour non-universality, notably due to recent measurements of the magnetic moment of the muon and the LFU ratios $R(D)$ and $R(D^\star)$. We propose a model involving a scalar leptoquark which can ameliorate the tensions with the SM prediction in either case, while accommodating the mass hierarchies and mixing of the charged SM fermions. Crucially, the...
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Dr Chen-Te Ma (Asia Pacific Center for Theoretical Physics)28/06/2022, 18:20Gravity and Supergravity
We generalize the Quantum Geometric Tensor by replacing a Hamiltonian with a modular Hamiltonian. The symmetric part of the Quantum Geometric Tensor provides a Fubini-Study metric, and its anti-symmetric sector gives a Berry curvature. Our generalization dubbed Quantum Modular Geometric Tensor gives the metric and curvature of a Kinematic Space. We also use the result of the identity Virasoro...
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RUIWEN OUYANG (National Institute of Chemical Physics and Biophysics)28/06/2022, 18:20
We will discuss the possibility of unifying in a simple and economical manner the
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Yukawa couplings of third-generation fermions in a non-supersymmetric SO(10) model with an intermediate symmetry breaking, focusing on two possible patterns
with intermediate Pati-Salam and minimal left-right groups. For this purpose,
we start with a two Higgs doublet model at the electroweak scale and assume... -
Dr Rashidul Islam (Mathabhanga College)28/06/2022, 18:40
Despite its immense success, the standard model fails to answer issues such as the stability of the electroweak vacuum or matter dominance over antimatter in the Universe. The Higgs boson and top quark sector hold the key to the answer. We need precise values of their couplings for the correct theoretical description of the said issues. Through a framework of the effective theory, we address...
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Prof. Efthimios Kaxiras (Harvard University)28/06/2022, 19:30
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Manuel Drees (Bonn University)29/06/2022, 09:00
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Karim Benakli (CNRS)29/06/2022, 09:30
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Hans Peter Nilles29/06/2022, 10:00
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Howard Haber (University of California,Santa Cruz (US))29/06/2022, 11:00
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Nikos Mavromatos (University of London (GB))29/06/2022, 11:30
I discuss a framework in which a low-energy effective Chern-Simons (CS) modification of General relativity emerges as a viable cosmological model from string theory. Condensation of CP-violating primordial gravitational waves can lead to non-trivial CS anomaly condensates, which drive inflation without external inflaton fields, of running vacuum model type.
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The string-model independent axion... -
Marcela Silvia Carena Lopez29/06/2022, 12:00
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Marios Petropoulos (Ecole polytechnique - CNRS)29/06/2022, 12:30
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Mirjam Cvetic (University of Pennsylvania)29/06/2022, 14:30
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Emilian Dudas (Ecole Polytechnique and CERN-TH)29/06/2022, 15:00
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Dr Konstantinos Dimopoulos29/06/2022, 16:00
A toy-model is presented, which considers two flat directions meeting at an enhanced symmetry point such that they realise the usual hybrid inflation mechanism. The kinetic term of the waterfall field features a pole at its Planckian vacuum expectation value (VEV), as in alpha-attractors. Consequently, after the phase transition which terminates hybrid inflation, the waterfall field never...
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Mr Antonios Kalogirou (National Technical U)29/06/2022, 16:00
We consider a real scalar field in de Sitter background and compute its thermal propagators.
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We propose that non-trivial thermal effects in the |out⟩ vacuum can be encoded in the anomalous
dimensions of the d = 3 Ising model. One of these anomalous dimensions, the critical exponent
η, fixes completely a number of cosmological observables, which we compute. -
Iñaki Lara Perez29/06/2022, 16:00
We revisit LHC searches for heavy invisible particles by exploiting QCD initial-state radiation. In the first part, we recast a monojet and a dijet signal region in a general multijet plus missing transverse momentum analyses by ATLAS. We find non-trivial mass limit can already be obtained for the Wino and Higgsino LSP scenarios with the present data of 139 fb$^{-1}$ thoroughly from hadronic...
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Sebastian Ellis (Universite de Geneve (CH))29/06/2022, 16:20
I will present a recently proposed approach to detect photon-coupled dark matter axions in an RF cavity. The approach relies on axion-mediated transitions between nearly-degenerate resonant modes, leading to parametrically enhanced signal power for light axions. We will discuss how a resonant signal is generated, and how it compares with traditional haloscope searches. We will also discuss...
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Rafal Maselek29/06/2022, 16:20
We investigate the possibility to explain the observed discrepancy between the observed value of anomalous magnetic moment of a muon and Standard Model predictions. We start by reviewing MSSM and confront it with the latest experimental constraints from LHC and DM experiments. Next, we move on to unorthodox scenarios in which neutralinos are unstable. We consider R-parity violation and GMSB...
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Dario Partipilo29/06/2022, 16:20
Charting and analysing vacua of supergravity theories is a fundamental task to find which models can be related to String Theory as well as to understand supersymmetry breaking, the possible mechanisms to generate critical points with a positive value of the cosmological constant and which supergravities lead to Anti-de Sitter (AdS) vacua with an interesting holographic dual. Among all...
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Georgios Kraniotis29/06/2022, 16:40
The curvature scalar invariants of the Riemann tensor are important in General Relativity because they allow a manifestly coordinate invariant characterisation of certain geometrical properties of spacetimes such as, among others, curvature singularities, gravitomagnetism. We calculate explicit analytic expressions for the set of Zakhary-McIntosh curvature invariants for accelerating...
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Victor Rodriguez Bouza (Universidad de Oviedo (ES))29/06/2022, 16:40
Recent measurements of inclusive and differential cross sections for top quark pair or single top productions are presented using the data collected by the CMS detector. The differential cross sections are measured multi-differentially as a function of various kinematic observables of top quarks, jets, leptons of the event final state. Results for ttbar cross sections are compared to precise...
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Shuntaro AOKI29/06/2022, 16:40
Recently, the Higgs-R2 inflation model has been intensively studied as a UV completed model of Higgs inflation. In this talk, we discuss two directions on extensions of this model. One is supersymmetric embedding of the Higgs-R2 inflation, which provides a further UV completion. We investigate several conditions for the original successful inflation to be kept after supersymmetrization, and...
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Alexandros PAPAGEORGIOU (CTPU - IBS)29/06/2022, 17:00
We study the impact of sphaleron-induced thermal friction on the axion dark-matter abundance due to the interaction of an axion-like particle (ALP) with a dark non-abelian gauge sector in a secluded thermal bath. Thermal friction can either enhance the axion relic density by delaying the onset of oscillations or suppress it by damping them. We derive an analytical formula for the frictional...
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Matteo Morittu (University of Padua)29/06/2022, 17:00
I will show that critical de Sitter points of gauged Supergravity are typically in conflict with the Weak Gravity Conjecture when the gravitino has a vanishing or parametrically small mass. This puts all known stable de Sitter vacua of the N=2 theory in the Swampland.
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Andres Abreu Nazario (The University of Kansas (US))29/06/2022, 17:00
Results from the CMS experiment are presented for electroweak production of supersymmetric partners in leptonic final states. Searches are performed for a wide range of SUSY spectra including so-called compressed spectra. The searches use proton-proton collision data with luminosity up to 138 fb-1 recorded by the CMS detector at center of mass energy 13 TeV during the LHC Run 2.
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Devin Mahon (University of Minnesota (US))29/06/2022, 17:20
Since the classic searches for supersymmetry have not given any strong indication for new physics, more and more supersymmetry searches target the more difficult, unconventional, or specific scenarios. This talk focuses on searches looking for signatures of stealth and R-parity-violating supersymmetry as well as SUSY models with long-lived particles or with compressed mass spectra that require...
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Dr Ioannis Gialamas (National and Kapodistrian University of Athens)29/06/2022, 17:20
In this talk we will consider a model of infation in the Palatini formulation of gravity with the addition of quadratic in curvature terms in the usual Einstein-Hilbert action.
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The model under consideration corresponds to a two-field scalar-tensor theory, that involves the Higgs field and an extra scalar field stemming from a gauge U(1)_X extension of the Standard Model, which contains an... -
Ahmad Elsayed Moursy (Cairo University)29/06/2022, 17:20Gravity and Supergravity
We consider hybrid inflation models in the framework of no-scale supergravity. $U(1)_R$ symmetry can be broken on the renormalizable level or by Planck suppressed non-renormalizable operators. We show that a Starobinsky like inflation can be realized with asymptotically flat potentials for specific region of parameter space. A connection to the low energy physics as well as the neutrino...
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Anish Ghoshal (University of Warsaw, Poland)29/06/2022, 17:40
The Standard Model (SM) of particle physics suffers from the hierarchy problem which can be ameliorated if all the scales that we observe in nature are considered not to be fundamental but generated dynamically in nature. As examples, we will discuss freeze-out and freeze-in production of vector dark matter (DM) in a classically scale invariant theory, where the Standard Model (SM) is...
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Soham Bhattacharya (Deutsches Elektronen-Synchrotron (DE))29/06/2022, 17:40
Results from the CMS experiment are presented for searches for supersymmetric particle production with tau leptons in the final state. The searches use proton-proton collision data with luminosity up to 138 fb-1 recorded by the CMS detector at center of mass energy 13 TeV during the LHC Run 2.
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Gregory Rischbieter (The University at Albany, SUNY)29/06/2022, 17:40
LUX-ZEPLIN (LZ) is a direct detection dark matter experiment hosted in the Davis Campus of the Sanford Underground Research Facility in Lead, South Dakota. LZ’s central detector is a dual-phase time projection chamber containing 7 tonnes of liquid xenon (LXe), 5.6 tonne fiducial mass, and is aided by a LXe ”skin” detector and liquid scintillator-based outer detector to veto events inconsistent...
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Mr Diogo Bastos (LIP - Laboratorio de Instrumentação e Física Experimental de Partículas (PT))29/06/2022, 18:00
Results are presented from searches for the pair production of the lightest supersymmetric partner of the top quark (stop) targeting compressed scenarios, including four-body decays of the stop. The final states are challenging because of the low momentum of visible decay products. A variety of techniques, including multivariate approaches, are used to address the challenges. The results are...
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Dr Triparno Bandyopadhyay (Tata Institute of Fundamental Research)29/06/2022, 18:00
Axion-like particles (ALPs) are at the forefront of physics research, especially at the intensity frontier, dealing with light weakly coupled particles. A plethora of different experiments searches for signals of the ALP in many different final states using innovative search strategies. We present a different perspective on ALP searches, concentrating on the modifications that such a particle...
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Fotis Farakos29/06/2022, 18:20
We investigate the formation of composite states of the goldstino in theories with non-linear supersymmetry and show that the pure Volkov-Akulov model has an instability towards goldstino condensation. We discuss the limitations and implications of our findings for string models involving anti-brane uplifts.
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Wenqi Ke29/06/2022, 18:20
Explaining the muon (g-2) anomaly, reported by Fermilab in 2021, imposes constraints on various Beyond Standard Model theories. In our work with Pietro Slavich (arXiv 2109.15277), we focus on a supersymmetric extension to the SM with four Higgs doublets. We show how the interplay between a correct Higgs mass prediction - calculated in the EFT approach - and explaining the muon (g-2) anomaly...
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Jonathan R. Ellis (University of London (GB))30/06/2022, 09:00
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Michalis Agathos30/06/2022, 09:30
With a rapidly increasing catalog of detected gravitational wave (GW) events since 2015, we have developed new ways of probing fundamental aspects of gravity and matter in extreme conditions. A violation of our current understanding of fundamental physics may manifest itself in ways that are testable by GW observations of astrophysical sources. In this talk I will summarise some of the recent...
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Sven Heinemeyer (CSIC (Madrid, ES))30/06/2022, 10:00
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Dimitri Nanopoulos (University of Texas (US))30/06/2022, 11:00
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Apostolos Pilaftsis (University of Manchester (GB))30/06/2022, 11:30
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Xiao Luo (Univ. of California Santa Barbara (US))30/06/2022, 12:00
The MicroBooNE collaboration recently released a series of measurements aimed at investigating the nature of the excess of low energy electromagnetic interactions observed by the MiniBooNE collaboration. In this talk, we will present the latest results from both a search of single photons in MicroBooNE, as well as a series of three independent analyses leveraging different reconstruction...
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Alon Faraggi (University of Liverpool)30/06/2022, 12:30
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Andreas Crivellin (PSI & UZH)01/07/2022, 09:00
I review the deviations from the Standard Model predictions observed in low energy precision measurements. This includes the anomalous magnetic moment of the muon, semi-lepton B meson decays, the Cabibbo Angle anomaly, the mass of the W boson and searches for very high-energetic lepton pairs. I then discuss the implications of these anomalies for possible extensions of the Standard Model.
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Laura Andrianopoli (Politecnico di Torino (IT))01/07/2022, 09:30
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Fernando Quevedo (University of Cambridge)01/07/2022, 10:00
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Keith Olive01/07/2022, 11:00
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Mariano Quiros Carcelen (The Barcelona Institute of Science and Technology (BIST) (ES))01/07/2022, 11:30
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Benjamin Allanach (University of Cambridge (GB))01/07/2022, 12:00
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Steven Adam Abel (University of Durham (GB))01/07/2022, 12:30
I discuss the use of Genetic Algorithms (GAs) as a search method in string theory. I will describe work showing that, despite intense recent developments in more conventional machine learning methods, GAs remain remarkably effective. Indeed comparison with Reinforcement Learning (RL) shows them to be in some respects superior. I also discuss how GAs and RL can be used in conjunction to make...
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Carlos E.M. Wagner (University of Chicago)01/07/2022, 14:30
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Stephen F King (University of Southampton)01/07/2022, 15:00
We discuss various approaches to the flavour problem of the Standard Model, including the LFU violation anomalies in B decays, in which the Yukawa couplings may be determined by symmetry or anarchy and may be renormalizable or effective. If the Yukawa couplings are effective, in principle the flavour scale can be anywhere from the Planck scale to the Electroweak scale, where SUSY/GUTs suggest...
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Roland Allen01/07/2022, 16:00
We have proposed a dark matter candidate which is consistent with all current experiments, and observable in the near or foreseeable future through a wide variety of direct, indirect, and collider detection experiments [1,2]. This particle is unique in that it has (i) precisely defined couplings and (ii) a well-defined mass of about 72 GeV/c$^2$, providing specific cross-sections and other...
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Vasiliki Mitsou (Univ. of Valencia and CSIC (ES))01/07/2022, 16:00
The unprecedented collision energy of the LHC has opened up a new discovery regime. The first LHC dedicated search experiment, MoEDAL, has inaugurated the lifetime frontier being optimised for searches of long-lived particles. MoEDAL is designed to search highly ionising particle avatars of new physics, such as magnetic monopoles and dyons, using proton and heavy-ion collisions at the LHC. The...
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Alessandra Betti (Sapienza Università e INFN, Roma I (IT))01/07/2022, 16:00
In the Standard Model, the ground state of the Higgs field is not found at zero but instead corresponds to one of the degenerate solutions minimising the Higgs potential. In turn, this spontaneous electroweak symmetry breaking provides a mechanism for the mass generation of nearly all fundamental particles. While the Standard Model makes a definite prediction for the Higgs boson self-coupling...
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Giorgio Busoni01/07/2022, 16:20
Neutron stars harbour matter under extreme conditions, providing a unique testing ground for fundamental interactions.
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Dark matter can be captured by neutron stars via scattering, where kinetic energy is transferred to the star.
This can have a number of observational consequences, such as theheating of old neutron stars to infra-red temperatures.
Previous treatments of the capture process... -
Dr Junichiro KAWAMURA (Ohio State University, Keio University)01/07/2022, 16:20
We propose a new search strategy for higgsinos. Assuming associated production of higgsino-like pairs with a W or Z boson, we search in the missing energy plus hadronically-tagged vector boson channel. We place sensitivity limits for (HL-)LHC searches assuming O(1−3.5 GeV) mass differences between the lightest neutral and charged states. We point out that using the $E_T^\mathrm{miss}$...
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Shigeki Hirose (University of Tsukuba (JP))01/07/2022, 16:20
Measurements of the fundamental properties of the Higgs boson are presented, including its mass, width, and the CP properties of its coupling in various production modes and decay channels.
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Dr Lucien Heurtier (IPPP, Durham, England)01/07/2022, 16:40
One signature of an expanding universe is the time variation of the cosmological abundances of its different components. For example, a radiation-dominated universe inevitably gives way to a matter-dominated universe, and critical moments such as matter-radiation equality are fleeting. In this talk, I will stress that this lore is not always correct and that it is possible to obtain a form of...
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Francesco Armando Di Bello (Sapienza Universita e INFN, Roma I (IT))01/07/2022, 16:40
Very detailed measurements of Higgs boson properties and its interactions can be performed with the full Run 2 pp collision dataset collected at 13 TeV, shining light over the electroweak symmetry breaking mechanism. This talk presents the latest measurements of the Higgs boson coupling properties by the ATLAS experiment in various decay bosonic and fermionic channels, as well as their...
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Sandhya Jain (Universite Catholique de Louvain (UCL) (BE))01/07/2022, 16:40
Recent HL-LHC studies that were performed by CMS within Snowmass activities are presented. Updates cover different physics topics including also NP processes.
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Andrzej Hryczuk01/07/2022, 17:00
In the usual approach to the determination of the dark matter thermal relic abundance, both from freeze-out and freeze-in mechanisms, one takes into account only 0-th moment of the Boltzmann equation, i.e. the equation for the particle number density. In case of freeze-out this comes from the assumption of local thermal equilibrium, while for freeze-in from neglecting annihilation processes....
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Dr Miguel Crispim Romao01/07/2022, 17:00
Validating Beyond the Standard Model (BSM) theories usually involves scanning highly multi-dimensional parameter spaces and check observable predictions against experimental bounds and theoretical constraints. Such task is often timely and computationally expensive, namely when the BSM model is severely constrained leading to very low random sampling efficiency. In this work we tackled this...
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Juhi Dutta01/07/2022, 17:00
Extensions of the Two Higgs Doublet model with a complex scalar singlet (2HDMS) can accommodate all current experimental constraints and are highly motivated candidates for Beyond Standard Model Physics. It can successfully provide a dark matter candidate as well as explain baryogenesis and provides gravitational wave signals. In this work, we focus on the dark matter phenomenology of the...
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Subhojit Roy (Harish-Chandra Research Institute, INDIA)01/07/2022, 17:20Dark Matter and Astroparticle Physics
We study in detail the viability and the patterns of a strong first-order electroweak phase transition as a prerequisite to electroweak baryogenesis in the framework of $Z_3$-invariant Next-to-Minimal Supersymmetric Standard Model (NMSSM), in the light of recent experimental results from the Higgs sector, dark matter (DM) searches and those from the searches of the lighter chargino and...
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Johannes Braathen (Osaka University)01/07/2022, 17:20
The trilinear Higgs coupling $\lambda_{hhh}$ is a crucial tool to investigate the structure of the Higgs potential and to probe possible effects of physics beyond the Standard Model (SM). Focusing on the Two-Higgs-Doublet Model (2HDM) as a concrete example, I will discuss the calculation of the leading two-loop corrections to $\lambda_{hhh}$, and show that this coupling can be significantly...
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Patrick Rieck (New York University (US))01/07/2022, 17:20
Many theories beyond the Standard Model predict new phenomena, such as heavy vectors or scalar, vector-like quarks, and leptoquarks in final states containing bottom or top quarks. Such final states offer great potential to reduce the Standard Model background, although with significant challenges in reconstructing and identifying the decay products and modelling the remaining background. The...
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Dr Rishav Roshan (Kyungpook National University)01/07/2022, 17:40Dark Matter and Astroparticle Physics
We show that the type-I seesaw, responsible for generating the light neutrino mass, itself is capable of accommodating one of the three right handed neutrinos as a freeze-in type of dark matter (DM) where the required smallness of the associated coupling is connected to the lightness of the (smallest) active neutrino mass. It turns out that (a) the non-thermal production of DM having mass...
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Mustafa Ashry01/07/2022, 17:40
The Higgs sector of the supersymmetric $B-L$ extension of the Standard Model (BLSSM) consists of 4 neutral $CP$-even bosons, 2 neutral $CP$-odd bosons and one charged Higgs boson. In this model, We show that the lightest $CP$-even Higgs boson, which is like the standard model Higgs boson, and the next lightest Higgs boson are generated from the neutral components of the two electroweak Higgs...
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Leonardo Rossi (INFN e Universita Genova (IT))01/07/2022, 17:40
This talk presents a search for long-lived particles with the ATLAS detector at the LHC based on the full Run 2 dataset. Such particles would move slower than the speed of light and can be identified using their high transverse momenta and large specific ionisation losses (dE/dx). Using the dE/dx measurement from the pixel detector layer provides sensitivity to particles with lifetimes down to...
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Sougata Ganguly (Indian Association for the Cultivation of Science)01/07/2022, 18:00Dark Matter and Astroparticle Physics
Commonly known as Boltzmann suppression is the key ingredient to create chemical imbalance for thermal dark matter. In a degenerate/quasi degenerate dark sector chemical imbalance can also be generated from a different mechanism which is analogous to the radioactive decay law, known as co-decaying dark matter. In this work, we have studied the dynamics of a multicomponent thermally decoupled...
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Lorenzo Diaz-Cruz01/07/2022, 18:00
In this talk we discuss briefly some of the main lessons that have been learned from the LHC about the profile of the Higgs boson. Then, we discuss possible patterns that models of new physics could leave on the couplings of the Higgs boson. In particular we discuss the dependence of the Higgs-Yukawa couplings on the fermion masses, an argue that in multi-Higgs type models, instead of a...
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Riccardo Bellan (Universita e INFN Torino (IT))01/07/2022, 18:00
Vector boson scattering is a key production process to probe the electroweak symmetry breaking of the standard model, since it involves both self-couplings of vector bosons and coupling with the Higgs boson. If the Higgs mechanism is not the sole source of electroweak symmetry breaking, the scattering amplitude deviates from the standard model prediction at high scattering energy. Moreover,...
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Cheng Li01/07/2022, 18:20
We discuss a $\sim 3\,\sigma$
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signal (local) in the light Higgs-boson search
in the diphoton decay mode at $\sim$ 96 GeV as reported by
CMS, together with a $\sim 2\,\sigma$ excess (local)
in the $b \bar b$ final state
at LEP in the same mass range.
We interpret this possible signal as a Higgs boson in the
2~Higgs Doublet Model type~II with an additional Higgs singlet, which can be... -
Bernhard Meirose (Stockholms Universitet)01/07/2022, 18:20Early Universe Cosmology
Baryogenesis, the process that is theorised to have happened in the beginning of the Universe which produced the observed baryonic asymmetry, remains one of the most fundamental problems in physics. Baryon number violation (BNV) is ordinarily required for baryogenesis, but so far, all searches for it came back negative. The HIBEAM/NNBAR program is a two stage set of experiments (HIBEAM then...
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Anish Ghoshal (University of Warsaw, Poland)01/07/2022, 18:20
We investigate in a conformally extended B−L scenario radiative plateau Higgs inflation while dynamically generating the Electroweak and Seesaw scale. The inflationary flat potential is a result of cancellations of quantum corrections between the gauge and Yukawa couplings. We show the theoretically consistent parameter space regions in LHC searches for this particle as well as in CMB.
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... -
Priyanka Lamba01/07/2022, 18:40
Martinus Veltman was the first to point out the inconsistency of the experimental value for the decay rate of \pi^0\rightarrow\gamma\gammaπ
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0
→γγ and its calculation by J. Steinberger with the very successful concept of the pion as the (pseudo)Nambu-Goldstone boson of the spontaneously broken global axial symmetry of strong interactions. That inconsistency has been resolved by J. Bell and... -
Dr Ioannis Dalianis (University of Athens)01/07/2022, 18:40
A low reheating temperature is predicted by many supersymmetric extensions of the Standard Model. This implies that an extended early matter domination era (eMD) might have occurred in the universe during the first seconds of the cosmic evolution. In this talk I will present how the density perturbations grow and primordial black holes (PBHs) can form during eMD. Emphasis will be given to the...
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Johannes Braathen (DESY)01/07/2022, 18:40
Recently, the CDF collaboration has reported a new precision measurement of the $W$-boson mass $M_W$, exhibiting a large deviation from the value predicted by the Standard Model (SM).
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In this talk, I will investigate possible new physics contributions to $M_W$ from extended Higgs sectors, focusing on the Two-Higgs-Doublet Model (2HDM) as a concrete example. Employing predictions for the... -
Johannes Braathen (Osaka University)01/07/2022, 19:00
Obtaining precise theoretical predictions for both production and decay processes of heavy new particles is of paramount importance to constrain the allowed parameter space of BSM models and to properly assess the sensitivity for discoveries and for discriminating between different BSM scenarios. In this context, it is well known that large logarithmic corrections can appear in the presence of...
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Harri Waltari01/07/2022, 19:20
The Higgs self-coupling is the only Standard Model parameter that has not been measured directly. On the other hand the self-coupling is related to the Higgs mass. In the MSSM the Higgs self-coupling is practically fixed and hence allows no large deviations from the SM, while nonminimal models can have different ways of achieving the 125 GeV Higgs mass, which can then lead to a non-SM-like...
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Martino Borsato (Ruprecht Karls Universitaet Heidelberg (DE))02/07/2022, 10:00
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Shufang Su (University of Arizona)02/07/2022, 11:00
Studying the properties of the Higgs boson can be an important window to explore the physics beyond the Standard Model. In this work, we present studies on the implications of the Higgs precision measurements at future Higgs Factories on various types of two Higgs Doublet Models. We perform a global fit to various Higgs search channels to obtain the 95% C.L. constraints on the model parameter...
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Elena Caceres (University of Texas at Austin (US))02/07/2022, 11:30
The Sachdev-Ye-Kitaev (SYK) model is a quantum mechanical model that is strongly interacting, chaotic and solvable. It is known to have a gravity dual and exhibit black hole
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physics. Recently, a sparse version of SYK was proposed. These sparse SYK models can be obtained by randomly pruning the couplings of the all-to-all SYK or defined by random regular hypergraphs. The sparsity makes... -
Gino Isidori (University of Zurich (CH))02/07/2022, 12:00
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Pran Nath02/07/2022, 12:30
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RINKU MAJI (Physical Research Laboratory Ahmedabad)
We investigate the impact of Coleman-Weinberg inflation on the stochastic gravitational wave background spectrum emitted by intermediate-scale cosmic strings. The string network is partially inflated and reenters the horizon at later times after the end of inflation, such that the short string loops are not produced. This leads to a significant modification of the gravitational wave spectrum...
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