Conveners
Contributed Talks: Session A
- Toru Kojo (KEK)
Contributed Talks: Session B
- Su Houng Lee (Yonsei University)
Contributed Talks: Session C
- Di-Lun Yang (Academia Sinica)
Contributed Talks: Session D
- Etsuko Itou (YITP, Kyoto U.)
Contributed Talks: Session F
- Chris Allton (Swansea University)
Contributed Talks: Session G
- Seyong Kim (Sejong University)
Contributed Talks: Session H
- Jon-Ivar Skullerud (Maynooth University)
Contributed Talks: Session I
- Kai Zhou (Chinese University of Shenzhen, Hong Kong)
Contributed Talks: Session J
- Veronica Dexheimer (Kent State University)
Contributed Talks: Session K
- Yoshimasa Hidaka (YITP, Kyoto University)
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Noriyuki Sogabe (University of Osaka)14/07/2026, 11:10Scientific ContributionsOral presentation (contributed)
We study the first-order chiral phase transition dynamics in a supercooled expanding quarkโgluon plasma (QGP). Using the BEST equation of state incorporating a QCD critical point and constrained by lattice QCD data, we investigate how thermally nucleated hadronic bubbles grow and convert the surrounding QGP into hadronic matter during Bjorken expansion. We identify three characteristic time...
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Masashi Kawahira (Yukawa Institute for Theoretical Physics, Kyoto University)14/07/2026, 11:30Scientific ContributionsOral presentation (contributed)
We investigate the finite-temperature phase structure of the four-dimensional SU(2) adjoint Higgs model, with particular emphasis on the possible deconfinementโHiggs continuity: the conjecture that the high-temperature deconfined phase of YangโMills theory and the finite-temperature Higgs phase belong to the same thermodynamic phase. We begin with an analysis of the global symmetries, showing...
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Masakiyo Kitazawa (YITP, Kyoto University)14/07/2026, 11:50Scientific ContributionsOral presentation (contributed)
We investigate the distribution of Lee-Yang zeros in the complex chemical potential plane and their relation to the Lee-Yang edge singularity in a linear sigma model as an effective model of QCD. To treat finite-size systems in a mean-field approach, we define the partition function as an integral of the constant order parameter field, which allows a simultaneous treatment of Lee-Yang zeros in...
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Navid Abbasi (Lanzhou University)14/07/2026, 12:10Scientific ContributionsOral presentation (contributed)
Interpreting conserved-charge cumulants near the QCD critical point requires a dynamical description of how fluctuations evolve during the finite lifetime of the fireball. In this talk, I will focus on the conserved-charge diffusion sector and ask how non-Gaussian cumulants are modified when the diffusive current is allowed to retain memory, instead of being instantaneously slaved to the...
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Dr Yusuke Shimada (YITP, Kyoto University)14/07/2026, 14:00Scientific ContributionsOral presentation (contributed)
In this talk, I will report our recent achievements on the thermodynamics of accelerated gluonic matter.
QCD Phase Transition under Acceleration
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Various phases of QCD matter have been studied with external parameters such as temperature, density, magnetic field, and rotation. In this talk, I will discuss acceleration as another parameter for the confinement-deconfinement properties of... -
Sho Yoshida (the University of Tokyo)14/07/2026, 14:20Scientific ContributionsOral presentation (contributed)
We investigate the thermodynamics of a hadron gas in de Sitter spacetime using the hadron resonance gas model. QCD thermodynamics is sensitive to external environments because changes in the vacuum structure, hadron spectrum, and effective degrees of freedom can modify the thermodynamic behavior of the system. Curved spacetimes provide a particularly rich setting, since vacuum states and...
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Tatsuya Wada (Kyoto University/YITP)14/07/2026, 14:40Scientific ContributionsOral presentation (contributed)
The order of the phase transition in QCD is known to depend on the quark masses and the baryon chemical potential $\mu$. In the heavy-quark limit and at $\mu/T=i\pi/3$, the first-order Roberge-Weiss transition line terminates at a triple first-order point where three first-order lines merge. As the quark mass decreases, this triple point is expected to terminate at a tricritical point....
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Yu-Shan Mu (Fudan University)14/07/2026, 15:00Scientific ContributionsOral presentation (contributed)
It has recently been realized that in the ultra-central heavy-ion collisions, mean transverse momentum of hadrons contains the information of the fundamental thermodynamic properties of quark-gluon plasma (QGP). In particular, in nucleus-nucleus collisions, the linear correlation between the mean transverse momentum and the charged multiplicity is attributed to the QCD speed of sound, which...
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Michael Mandl (University of Graz)14/07/2026, 15:40Scientific ContributionsOral presentation (contributed)
Non-perturbative lattice simulations have contributed significantly to our understanding of QCD at finite temperature. However, when applied to non-zero baryon density, lattice simulations face the infamous sign problem, preventing the straightforward application of established importance-sampling techniques. A possible way out is provided by the complex Langevin approach, which is based on...
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Gert Aarts (Swansea University)14/07/2026, 16:00Scientific ContributionsOral presentation (contributed)
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.
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Thomas R. Ranner (TU Wien)14/07/2026, 16:20Scientific ContributionsOral presentation (contributed)
In the last few years, generative machine learning methods have been explored as possible alternatives to classic Markov chain Monte Carlo (MCMC) methods in lattice field theory. A key advantage being that generative models such as normalizing flows and diffusion models have by design no autocorrelation between generated samples. In this vein we have recently introduced gauge-equivariant...
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Zhen-Xuan Yang (Fudan University)14/07/2026, 16:40Scientific ContributionsOral presentation (contributed)
In recent years, real-time evolution based on the Hamiltonian formulation of lattice gauge theories has been investigated as an alternative framework that can circumvent the sign problemโa sampling inefficiency in quantum Monte Carlo methods arising from topological terms, chemical potentials, or real-time dynamics. With the rapid development of quantum computing, it is now plausible to handle...
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Christian Andratschke (Bielefeld University)14/07/2026, 17:00Scientific ContributionsOral presentation (contributed)
Obtaining the electric conductivity for out-of-equilibrium magnetized QCD mainly faces the challenge of a numerically ill-posed problem. This problem arises when extracting the spectral function from noisy Euclidean correlators on a finite lattice. Recently, a number of novel frameworks have been proposed to resolve the ill-posed problem, including, for instance, machine learning techniques....
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Masayuki Kanazawa (Nagoya University)15/07/2026, 10:50Scientific ContributionsOral presentation (contributed)
The baryon mass originates from spontaneous chiral symmetry breaking and a chiral invariant mass. The chiral invariant mass of hyperons has not been sufficiently considered. In this study, we investigate the dependence of the density at which hyperons appear on their chiral invariant masses in neutron star matter. We employ SU(2)_L x SU(2)_R chiral symmetry and introduce the chiral invariant...
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Bao-Jun Cai (Fudan University)15/07/2026, 11:10Scientific ContributionsOral presentation (contributed)
Understanding the equation of state (EOS) of dense matter inside neutron stars remains an important topic in modern nuclear physics and astrophysics. Recent multimessenger observations, especially gravitational-wave measurements from binary neutron-star mergers, together with X-ray timing and radio pulsar observations, have opened new opportunities for probing matter at supranuclear densities....
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Bikai Gao15/07/2026, 11:30Scientific ContributionsOral presentation (contributed)
The ``hyperon puzzle'' remains a fundamental challenge in nuclear astrophysics. We investigate hyperon emergence in neutron star matter using the $SU(3)$ parity doublet model with chiral representation $(3,\bar{3}) + (\bar{3},3)$. This framework naturally incorporates chiral symmetry restoration and provides a systematic description of baryon masses in dense matter through the interplay...
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Igor Shovkovy (Arizona State University)15/07/2026, 11:50Scientific ContributionsOral presentation (contributed)
This talk reviews neutrino emission mechanisms in dense quark matter under strong magnetic fields, focusing on direct Urca and synchrotron processes and the role of Landau-level quantization. It highlights the resulting anisotropic and oscillatory emissivity and discusses implications for magnetar cooling and pulsar kicks.
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Veronica Dexheimer (Kent State University)15/07/2026, 12:10Scientific ContributionsOral presentation (contributed)
We study the equation of state of hot and dense hadronic matter using an extended chiral mean field (CMF) model framework where the addition is the inclusion of interactions of thermally excited mesons. This is implemented by calculating the in-medium masses of pseudoscalar and vector mesons, obtained through the explicit chiral symmetry-breaking and vector-interaction terms in the Lagrangian,...
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Hidefumi Matsuda (Zhejiang University)16/07/2026, 10:50Scientific ContributionsOral presentation (contributed)
Chamonium has recently attracted attention as a hard probe for imprints of the glasma, a non-equilibrium state of strong gluon fields forming in the early stage of a relativistic heavy-ion collision.
In this work, we investigate color randomization of the $c\bar{c}$ system induced by the glasma environment, focusing particularly on singlet-to-octet transition processes. The resulting octet...
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Nicholas J Benoit (Academica Sinica)16/07/2026, 11:10Scientific ContributionsOral presentation (contributed)
We have developed a new numerical model to tackle an important problem of heavy-ion physics: the missing link between the pre-equilibrium Glasma and the resulting quark gluon plasma (QGP) stage. Our model simulates the nonperturbative production and real-time dynamics of the quarks from the Glasma. In this presentation, we will introduce our model and report on the role of particle production...
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Zi-Wei Lin (East Carolina University)16/07/2026, 11:30Scientific ContributionsOral presentation (contributed)
We use the Chapman-Enskog method to investigate the shear viscosity of a quark-gluon plasma at finite temperature with a focus on its relation to parton cross sections. We use the recent analytical expression for the shear viscosity [1] of a massless quark-gluon gas at chemical equilibrium with Boltzmann statistics after including all $2\leftrightarrow 2$ parton scatterings. Applying the...
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maya shimomura (NWU/TOHOKU Univ. RARiS)16/07/2026, 11:50Scientific ContributionsOral presentation (contributed)
The PHENIX experiment at the Relativistic Heavy Ion Collider has carried out a broad and systematic program to study strongly interacting matter over a wide range of collision systems and beam energies. Although PHENIX completed data taking in 2016, its high-statistics data sets continue to provide important constraints on the properties of the quark-gluon plasma, the role of initial-state and...
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Saumen Datta (Tata Institute of Fundamental Research)16/07/2026, 13:30Scientific ContributionsOral presentation (contributed)
For quark-antiquark separation $r \ll 1/T$, the interaction of a
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quarkonium with a quark-gluon plasma medium can be approximated by a
dipole interaction with a color electric field. The evolution and decay
of the quarkonia in the plasma can then be calculated from transport
coefficients calculated from the thermal correlator of color electric
fields connected by an adjoint... -
Taesoo Song (GSI)16/07/2026, 13:50Scientific ContributionsOral presentation (contributed)
The Remler formalism provides a framework for the Wigner projection of a two-particle state onto bound states. This projection is implemented either at the onset of bound-state formation or during in-medium scattering of one of the constituent particles. This approach has been successfully applied to quarkonium production in both box simulations and heavy-ion collisions.
In the present...
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Sungtae Cho (Kangwon National University)16/07/2026, 14:10Scientific ContributionsOral presentation (contributed)
We discuss the elliptic and triangular flow of the J/ฯ and the ฯ(2S) in relativistic heavy ion collisions based on the coalescence model. Starting from the investigation of their production from the quark-gluon plasma by regeneration, we evaluate their anisotropic flow based on their yield distribution as functions of transverse momenta. We incorporate the transverse momentum distribution of...
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Daria Prokhorova (Tsinghua University)16/07/2026, 14:30Scientific ContributionsOral presentation (contributed)
In this work, we employ heavy-flavor (HF) jet tomography to probe the short-lived far-from-equilibrium medium created in proton-proton collisions at LHC energies. On an event-by-event basis, HF quark pairs produced in hard scattering via PYTHIA are embedded into a color string model and interact with the evolving medium through both collisional (based on Thoma-Gyulassy elastic cross-section)...
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Juhee Hong16/07/2026, 14:50Scientific ContributionsOral presentation (contributed)
We discuss the non-equilibrium Greenโs function approach to heavy-quark transport based on the Kadanoff-Baym equation. Using hard-thermal-loop perturbation theory, the self-energy terms are calculated up to next-to-leading order. In the on-shell limit, the kinetic equation reduces to a Boltzmann equation that accounts for elastic scattering and gluon emission from a single scattering....
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Han Gao (McGill University)16/07/2026, 15:30Scientific ContributionsOral presentation (contributed)
Dileptons are penetrating probes for the early-stage dynamics of the quark-gluon plasma (QGP). The polarization of dileptons encodes detailed information about their production mechanism. This study presents an integrated and realistic framework for calculating dilepton polarization signatures using the photon spectral function of a finite-temperature QCD plasma. Combining virtual photon...
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Prof. xinyang wang (Anhui University of Science & Technology)16/07/2026, 15:50Scientific ContributionsOral presentation (contributed)
Electromagnetic probes provide a unique window into the extreme environments created in heavy-ion collisions. This presentation reviews our recent theoretical evaluations of photon and dilepton production using quantum field theory. We highlight anomalous signatures resulting from the coupling of EM probes to intense magnetic fields, offering insights into the topological and dynamical...
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Dan Zhang16/07/2026, 16:10Scientific ContributionsOral presentation (contributed)
Understanding how external magnetic fields affect chiral symmetry and the axial anomaly is an important question in QCD under extreme conditions. At vanishing magnetic field, the light-quark chiral condensate serves as the standard order-parameter-like observable for chiral symmetry breaking, while the restoration of chiral $SU(2)_L\times SU(2)_R$ symmetry and the effective restoration of...
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Zbigniew Drogosz (Jagiellonian University in Krakow)16/07/2026, 16:30Scientific ContributionsOral presentation (contributed)
In my talk, I will give a comprehensive overview of our group's recent results in spin hydrodynamics, including:
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- generalized thermodynamic relations [1],
- the twofold expansion, in spin polarization and in gradients [2],
- stability and causality [3, 4],
- boost-invariant solutions [5, 6, 7],
- the new local equilibrium Wigner function for spin-1/2 particles [8, 9],
- discussion of... -
Haesom Sung (Academia Sinica)16/07/2026, 16:50Scientific ContributionsOral presentation (contributed)
We study the local spin polarization of quarks induced by color-field correlators stemming from the correlation of chromo-Lorentz force and chromo-magnetic polarization or chromo-spin Hall effect in the presence of momentum anisotropy. Such effects can trigger longitudinal polarization from fluctuating color fields in glasma or quark gluon plasma phases with transverse expansion for...
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Dr Josรฉ Javier Hernรกndez Hernรกndez (Central China Normal University)17/07/2026, 10:50Scientific ContributionsOral presentation (contributed)
The axion is a prime dark matter candidate that aditionally solves the strong CP problem. Its experimental detection relies on the axion-photon coupling, which receives a model-independent contribution from Quantum Chromodynamics (QCD). Previously, this contribution was only estimated via different variants of Chiral Perturbation Theory (ChPT) with inconsistent results. We present the first...
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Jangho Kim (Seoul National University)17/07/2026, 11:10Scientific ContributionsOral presentation (contributed)
Strong coupling lattice QCD provides an effective framework for studying finite density QCD and the nuclear liquidโgas transition using dual degrees of freedom such as monomers, dimers, and baryon worldlines. In this representation, the sign problem is significantly reduced, enabling direct investigations of strongly interacting matter at low temperatures and finite baryon density.
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However,... -
Jon-Ivar Skullerud (Maynooth University)17/07/2026, 11:30Scientific ContributionsOral presentation (contributed)
The classical U(1) axial symmetry of the QCD lagrangian is broken by 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 axial symmetries can be investigated through degeneracies of mesonic correlators and their associated susceptibilities....
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Etsuko Itou (YITP, Kyoto U.)17/07/2026, 11:50Scientific ContributionsOral Presentation (invited)
We investigate the chemical-potential dependence of hadron spectra in two-color QCD using the first-principles lattice simulations.
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In this work, we compute two-point correlation functions for various hadrons by newly including the contributions from disconnected diagrams, and extract the corresponding effective masses.
In the meson sector, the mass hierarchy in the hadronic phase (normal... -
Chris Allton (Swansea University)17/07/2026, 12:10Scientific ContributionsOral presentation (contributed)
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 โphaseโ above Tc that maintains confinement.
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zhibin zhu (Fudan University)17/07/2026, 14:00Scientific ContributionsOral presentation (contributed)
In heavy-ion collisions, strong acceleration can generate an effective temperature via the Unruh effect, $T_U = a/2\pi$, which may reach the QCD scale. We study chiral symmetry breaking under acceleration and rotation using effective models. The predicted phase diagram depends on the renormalization scheme: subtracting the Rindler vacuum renders the critical temperature...
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Geraint Evans (Institute of Physics, Academia Sinica)17/07/2026, 14:20Scientific ContributionsOral presentation (contributed)
It was shown recently that vorticity manifesting from space-time torsion can be treated as an effective axial gauge field coupled to Dirac fermions in a flat spacetime. Motivated by this, we investigate the anomalous effects induced by vorticity, magnetic fields and chemical potentials on Nambu-Goldstone modes. Starting from a linear sigma model, I shall outline how to derive the...
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Victor Braguta (JINR)17/07/2026, 14:40Scientific ContributionsOral presentation (contributed)
Quark-gluon plasma created in heavy-ion collision experiments is affected by relativistic rotation and strong acceleration, which influence its properties. In this report, we present the results of lattice investigation into how the confinement/deconfinement phase transition in gluodynamics is affected by rotation and acceleration. Specifically, we find that under the influence of these...
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Shuhei Minato (The University of Tokyo)17/07/2026, 15:00
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Mamiya Kawaguchi (Anhui University of Science and Technology)17/07/2026, 15:20Scientific ContributionsOral presentation (contributed)
The behavior of the U(1) axial anomaly under extreme conditions is an important issue for understanding the QCD phase structure and the properties of hadrons. In particular, the topological susceptibility characterizes the strength of U(1) axial symmetry breaking, and its relation to chiral symmetry restoration in hot and dense matter has been extensively discussed.
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Based on the... -
Kazuya Mameda (Tokyo University of Science)17/07/2026, 16:00Scientific ContributionsOral presentation (contributed)
Quantum geometry is a prominent concept in modern physics. In particular, the Riemannian metric in Hilbert space, called the quantum metric, is an essential ingredient to realize superconductivity in flat-band systems where conventional kinetic dynamics are quenched, making quantum-geometric phenomena one of the most exciting fields in the recent condensed matter community. In this talk, we...
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Zebin Qiu17/07/2026, 16:20Scientific ContributionsOral presentation (contributed)
We study the low-energy QCD phase diagram under a magnetic field and at finite density. Both baryon chemical potential and isospin chemical potential are taken into account. The former is responsible for a domain wall configuration of the neutral pion, dubbed the chiral soliton lattice (CSL), with its origin from the chiral anomaly. The latter induces the charged pion condensate that can...
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Dr Asanosuke Jinno (KEK)17/07/2026, 16:40Scientific ContributionsOral presentation (contributed)
Baryon interactions are one of the most fundamental quantities in nuclear physics. Their properties in vacuum have been extensively studied via scattering experiments and many theoretical methods. In medium, however, the baryon interactions are poorly examined, although they are indispensable to deepen our microscopic understanding on e.g. the structure of neutron stars and heavy-ion collision...
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Yuhan Gao (Fudan University)17/07/2026, 17:00Scientific ContributionsOral presentation (contributed)
We investigate meson properties in a three-flavor quarkโmeson (linear sigma) model at finite temperature and isospin chemical potential. The model incorporates explicit chiral symmetry breaking as well as the $U _A(1)$ anomaly via the KobayashiโMaskawaโโt Hooft (KMT) interaction. Working in the mean-field approximation, we introduce both chiral condensates and a pion condensate to describe...
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Deepak Kumar (Institute of Physics Bhuabneswar)Scientific ContributionsOral presentation (contributed)
A proto-neutron star (PNS) gets formed after a successful supernova when the stellar remnant decouples from the ejecta. In this study, we explore a relativistic framework for the finite-temperature $\beta$-equilibrium limit of equation of state (EOS), constrained via a Bayesian inference methodology. The EOS is obtained using a minimal number of constraints, including a few nuclear saturation...
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Ankit Kumar Panda (CCNU, Wuhan, Inst. Part. Phys.)Scientific ContributionsOral presentation (contributed)
We present the first comprehensive study of dilepton production from a hot, magnetized quark-gluon plasma in heavy-ion collisions (HIC), incorporating realistic, time-dependent, and spatially inhomogeneous magnetic field profiles within an analytically solvable Gubser flow background. This framework provides a significant improvement over previous static calculations with homogeneous fields...
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Vigilante di Risi (ICTP-AP)Scientific ContributionsOral presentation (contributed)
The dynamics of systems governed by SU(N) gauge theory in presence
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of a heavy colour field source is investigated inside the conformal window. Precise results on the spectra and wave functions of bound states are derived by generalizing the QCD static potential for fermions in different representation of the colour group. In particular, we establish characteristic behavior of the mass... -
Mahboubeh Shahrbaf (University of Wroclaw)Scientific ContributionsOral presentation (contributed)
We investigate cold, high-density matter in the QCD phase diagram within an extended lowest-order constrained variational (LOCV) approach. Neutron stars provide a natural laboratory for this regime, where strongly interacting matter exists at densities that are not directly accessible in terrestrial experiments.
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Within this framework, we study the emergence of ฮ hyperons in dense neutron star... -
Pranjal Tambe (Inter-University Centre for Astronomy and Astrophysics)Scientific ContributionsOral presentation (contributed)
In the extreme environments of binary neutron star (BNS) mergers, temperatures (T $\sim 1โ50$ MeV) and magnetic fields (B $\sim 10^{15}โ10^{17}$ G) reach regimes where neutrino transport govern the macroscopic thermodynamic and chemical evolution. Standard merger simulations frequently rely on zero-field neutrino opacities, potentially missing critical transport physics in highly magnetized...
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Brijesh Srivastava (Purdue University)Scientific ContributionsOral presentation (contributed)
The observed fluid behavior of the matter produced in heavy ion and pp collisions implies that the strings 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...
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Rajesh Maiti (Inter-University Centre for Astronomy and Astrophysics (IUCAA))Scientific ContributionsOral presentation (contributed)
Precise measurements of neutron-star masses and radii by the NICER mission offer important insights into the nature of dense matter and the equation of state. We performed a Bayesian hypothesis-ranking analysis for equation of state model selection in light of the latest NICER measurements, including the recent measurement of PSR J0614-3329, which reported an equatorial radius of 10.29 km for...
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