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Chihiro Sasaki (University of Wroclaw & SKCM2 at Hiroshima University)14/07/2026, 09:20
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Volodymyr Vovchenko (University of Houston)14/07/2026, 10:05
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Noriyuki Sogabe (University of Osaka)14/07/2026, 11:10
We study the first-order chiral phase transition dynamics in a supercooled expanding quark–gluon 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, 11:30
We investigate the finite-temperature phase structure of the four-dimensional SU(2) adjoint Higgs model, with particular emphasis on the possible deconfinement–Higgs continuity: the conjecture that the high-temperature deconfined phase of Yang–Mills 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, 11:50
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, 12:10
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, 14:00
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, 14:20
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, 14:40
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, 15:00
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, 15:40
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, 16:00
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, 16:20
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, 16:40
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 problem—a 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, 17:00
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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Mirzayusuf Musakhanov (Institute of Theoretical Physics, NUUZ, Uzbekistan)14/07/2026, 17:45
The standard model of the universe, λCDM, is based on the FLRW metric with a flat coordinate space and the Friedmann equations. The cosmological constant λ provides the cancellation of the matter field contributions in the flat (Minkowski) space, as was proposed long ago in 1967 by Zeldovich. The dynamical dark energy appears on the surface of the vacuum energy of matter fields at the flat...
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Mohammad Yousuf Jamal (Central China Normal University, Wuhan, China)14/07/2026, 17:45
Understanding the non-perturbative properties of the quark-gluon plasma (QGP) formed in ultrarelativistic heavy-ion collisions remains a central challenge in QCD phenomenology. Conventional quasi-particle approaches rely on analytic parametrizations that often fail to capture the complex thermal structure of the medium, particularly near the deconfinement crossover region. To address this, we...
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Mr Sayantan Ghosh (National Institute of Technology Rourkela)14/07/2026, 17:45
Neutron stars (NSs) are the superdense objects with exceptionally strong gravitational fields, providing an ideal laboratory for exploring general relativity (GR) in the high-curvature regime. They also open up exciting possibilities for probing new gravitational physics beyond the established framework of GR. Thus, investigating modified theories of gravity in the context of superdense stars...
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Sol Noh (Sejong University)14/07/2026, 17:45
In the presence of the chiral symmetry, the vector and axial-vector meson channels are expected to be degenerate. With Generation 2 and Generation 2L FASTSUM lattice gauge field ensembles at non-zero temperature, the FASTSUM collaboration studied the mesonic/baryonic correlator ratios at finite temperature. They also studied the effect of small baryon chemical potential on the mesonic...
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MANPREET KAUR (Dr. B R Ambedkar National Institute of Technology Jalandhar, Punjab, India)14/07/2026, 17:45
The impact of density and temperature on pseudoscalar $D_s$ and $B_s$ mesons is analyzed within an isospin-asymmetric resonance matter using the chiral SU(3) model combined with a QCD sum-rule approach. The quark and gluon condensates obtained from the chiral SU(3) model serve as input to the QCD sum rule approach, enabling the calculation of in-medium masses of $D_s$ and $B_s$ mesons. These...
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Rohit Agarwala (Department of Physics, Bodoland University)14/07/2026, 17:45
We investigate the $p_{\rm T}$-differential radial flow observable $v_0(p_{\rm T})$ in Au+Au collisions at $\sqrt{s_{\rm NN}} = 200$ GeV using AMPT model in its String Melting (SM) configuration. For inclusive charged hadrons, the AMPT-SM framework, that includes partonic dynamics, reproduces three hallmarks of genuine collective behavior: (i) long-range pseudorapidity correlations, (ii)...
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Ms Navpreet Kaur (Department of Physics, Dr. B R Ambedkar National Institute of Technology Jalandhar, Punjab-144008, India)14/07/2026, 17:45
The European Muon Collaboration (EMC) effect indicates that the nuclear medium is not merely a passive background but plays an active role in shaping the internal structure of nucleons, as the structure function of nucleons inside the nuclei comes out to be different from that of free nucleons. Motivated by the EMC effect, the present work focuses on the study of internal quark dynamics of the...
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Shuhei Minato (UTokyo)14/07/2026, 18:05
The Schwinger effect is a nonperturbative manifestation of vacuum instability and cannot be captured by a finite-order expansion in the external electric field. Its standard treatment already involves an appropriate resummation. For example, the vacuum decay rate is obtained in the in-out formalism from the imaginary part of the one-loop effective action, which compactly represents the sum of...
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Arijit Das (Indian Institute of Science Education and Research Thiruvananthapuram)14/07/2026, 18:05
We construct an equation of state describing cold and dense matter in the core of neutron stars which includes an admixture of fermionic dark matter and incorporates nucleon effective masses derived from the relativistic Brueckner-Hartree-Fock (BHF) many-body approach within a relativistic mean-field model. Such a BHF-informed mixed-model approach increases stellar compactness, with...
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Asit Karan (Indian Institute of Science Education and Research Bhopal, IISER Bhopal)14/07/2026, 18:05
We investigate the impact of dark matter on the structure and deformation of magnetars. We adopt a perturbative approach to model magnetic-field-induced deformation and assume that dark matter interacts with hadronic matter only through gravity. Under the assumption that dark matter is significantly softer than hadronic matter, we find that magnetic fields can indirectly influence the dark...
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Jongheon Baek (Yonsei)14/07/2026, 18:05
We investigate the pole structure of the (T_{cs}) resonance in a coupled-channel quark model. The model space is separated into a compact four-quark sector (P) and a two-meson continuum sector (Q={DK,D^\ast K^\ast}). Compact seed states are calculated using constituent-quark Hamiltonians with two-body one-gluon-exchange interactions and possible instanton-induced or three-body...
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Davood Rafiei Karkevandi (University of Wroclaw, Institute of Theoretical Physics)14/07/2026, 18:05
Neutron stars provide a unique astrophysical laboratory for probing dark matter under extreme density and strong gravity. Motivated by dark-sector interpretations of the neutron lifetime anomaly, we investigate neutron-to-dark-matter conversion in dense neutron-star matter and its impact on the equation of state and stellar observables.
We model baryonic matter within a non-linear...
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Seungyeob Jwa (Seoul National University)14/07/2026, 18:05
We present a hybrid classical quantum approach for simulating lattice QCD in the strong coupling regime using a quantum annealer. In this limit, lattice QCD can be reformulated in terms of color singlet degrees of freedom monomers subject to local constraints arising from Grassmann integration. This dual representation eliminates the gauge fields while retaining essential non perturbative...
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Yongjun Choi14/07/2026, 18:05
The QGP(Quark-Gluon Plasma) and the QCD phase transition from/to the hadronic phase are one of the hottest topics in high energy nuclear physics. In particular, the dense matter study via nuclei collisions at $\sqrt{s_\mathrm{NN}} \sim 5 - 10 \, \mathrm{GeV}$ is expected to bring more detailed information on the 1st order phase transition, whereas the hot matter study through nuclei collisions...
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Conan Sakamoto (YITP)14/07/2026, 18:25
Much of the physics in the cold-dense region in the QCD phase diagrams are characterised by the formation of Cooper pairs on the Fermi surface. In two-flavour symmetric quark matter, a phase transition is expected to occur into the two-flavour colour superconducting (2SC) phase. A key feature of this phase is that certain quarks remain ungapped due to repulsive colour-symmetric interactions....
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Arijit Das (Indian Institute of Science Education and Research Thiruvananthapuram)14/07/2026, 18:25
We construct an equation of state describing cold and dense matter in the core of neutron stars which includes an admixture of fermionic dark matter and incorporates nucleon effective masses derived from the relativistic Brueckner-Hartree-Fock (BHF) many-body approach within a relativistic mean-field model. Such a BHF-informed mixed-model approach increases stellar compactness, with...
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Xuhao Wu (Yanshan University)14/07/2026, 18:25
We study the possible existence of the hexaquark H particle (uuddss) in neutron stars. Within the Chromomagnetic Interaction framework, the flavor-singlet H exhibits a mass of 2212.7 MeV. Using the relativistic mean-field model, we explore how H particle couplings influence neutron star structure. Our results indicate that H particles could persist as stable constituents, reducing the maximum...
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Jai Prakash (Shanghai Jiao Tong University)14/07/2026, 18:25
This work investigates heavy quark dynamics within the quark-gluon plasma (QGP) by incorporating memory effects through a generalized Langevin equation. We model time-correlated thermal noise with a power-law decay using a fractional differential equation based on the Caputo fractional derivative of order parameter (\nu ). To calculate the impact of memory, we systematically evaluate the...
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Shuhei Minato (UTokyo)14/07/2026, 18:25
Recent neutron-star observations and equation-of-state studies incorporating ab initio QCD constraints are placing increasingly stringent constraints on dense matter. In this context, homogeneous color superconductivity has attracted renewed phenomenological interest and has been actively studied in recent years.
On the other hand, inhomogeneous phases remain relatively less explored....
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Fynn Kleinehanding (Bielefeld University)14/07/2026, 18:25
We study the effects of non-zero isospin density on the topological susceptibility in lattice simulations with $N_f = 2 + 1$ flavors of improved staggered quarks at multiple lattice spacings. To reduce lattice artifacts, we employ a generalization of the eigenvalue reweighting technique known from vanishing densities to non-zero isospin chemical potentials, using the (massive) singular values...
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Toru Kojo (KEK)15/07/2026, 09:00
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Yoshimasa Hidaka (YITP, Kyoto University)15/07/2026, 09:45Oral Presentation (invited)
The nature of QCD matter at intermediate temperature and baryon density—beyond the dilute hadronic phase but before the onset of weakly coupled quark matter—is still not well understood. Various theoretical scenarios have been proposed for this regime, including quarkyonic matter and the spaghetti of quarks with glueballs (SQGB), yet systematic theoretical control is difficult: perturbative...
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Masayuki Kanazawa (Nagoya University)15/07/2026, 10:50
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, 11:10
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, 11:30
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, 11:50
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, 12:10
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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Kai Zhou (Chinese University of Shenzhen, Hong Kong)16/07/2026, 09:00
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MinJung Kweon (Inha University)16/07/2026, 09:45
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Hidefumi Matsuda (Zhejiang University)16/07/2026, 10:50
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, 11:10
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, 11:30
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, 11:50
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, 13:30
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, 13:50
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, 14:10
We discuss the elliptic and triangular flow of the J/ψ and the ψ(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, 14:30
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, 14:50
We discuss the non-equilibrium Green’s 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, 15:30
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, 15:50
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, 16:10
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, 16:30
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, 16:50
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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Violetta Sagun (University of Southampton)17/07/2026, 09:00
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Jana N. Guenther (University of Wuppertal)17/07/2026, 09:45
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Dr José Javier Hernández Hernández (Central China Normal University)17/07/2026, 10:50
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, 11:10
Strong coupling lattice QCD provides an effective framework for studying finite density QCD and the nuclear liquid–gas 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, 11:30
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, 11:50
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, 12:10
A study of centre vortices is presented on anisotropic, dynamical QCD lattices from the FASTSUM collaboration. Results are discussed across a broad sweep of temperatures up to >500 MeV. Centre vortex percolation, connectivity and other properties are analysed, supporting the existence of an intermediate QCD “phase” above Tc that maintains confinement.
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zhibin zhu (Fudan University)17/07/2026, 14:00
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, 14:20
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, 14:40
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, 15:20
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, 16:00
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, 16:20
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, 16:40
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, 17:00
We investigate meson properties in a three-flavor quark–meson (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 Kobayashi–Maskawa–’t 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)
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.)
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)
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)
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 Λ hyperons in dense neutron star... -
Pranjal Tambe (Inter-University Centre for Astronomy and Astrophysics)
In the extreme environments of binary neutron star (BNS) mergers, temperatures (T $\sim 1−50$ MeV) and magnetic fields (B $\sim 10^{15}−10^{17}$ 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)
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))
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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