Quark Matter 2025

Session

Parallel session 20

8 Apr 2025, 10:50

Goethe University Frankfurt, Campus Westend, Theodor-W.-Adorno-Platz 1, 60629 Frankfurt am Main, Germany

Conveners

Parallel session 20: QCD phase diagram & critical point I

• Nu Xu (Lawrence Berkeley National Lab)

146. Covariant formulation of spinodal decomposition for simulating first-order QCD phase transition

Mayank Singh (Vanderbilt University)

08/04/2025, 10:50

QCD phase diagram & critical point

Oral

We expect to probe the QCD phase diagram in the region beyond the critical point at the beam energy scan program at Relativistic Heavy-Ion Collider (RHIC) and at the upcoming Facility for Antiproton and Ion Research (FAIR). In this region, the heavy-ion collision systems will undergo a first-order phase transition. This phase transition is expected to proceed via spinodal decomposition as the...

117. Simulating stochastic diffusion in critical and near-critical fluids in (3+1) dimensions

Thomas Schaefer

08/04/2025, 11:10

QCD phase diagram & critical point

Oral

We describe numerical simulations of stochastic fluid dynamics
with a conserved charge coupled to the momentum density of the
fluid. This theory is known as model H, and it is expected to
describe universal dynamics in the vicinity of a possible
critical endpoint in the QCD phase diagram. We verify dynamical
scaling, and compute the scaling exponent and the renormalized
viscosity. We...

18. Exploring QCD matter in extreme conditions with Machine Learning

Prof. Kai Zhou (CUHK-Shenzhen)

08/04/2025, 11:30

QCD phase diagram & critical point

Oral

In recent years, machine learning has emerged as a powerful computational tool and novel problem-solving perspective for physics, offering new avenues for studying strongly interacting QCD matter properties under extreme conditions. In this talk I will aim to provide an overview of the current state of this intersection of fields, focusing on the application of machine learning to theoretical...

497. Probing sound propagation in the QGP via relativistic ultra-central collisions with ALICE

Omar Vazquez Rueda (University of Houston (US))

08/04/2025, 11:50

QCD phase diagram & critical point

Oral

Relativistic heavy-ion collisions create a hot, dense state of QCD matter called Quark–Gluon Plasma (QGP). In ultra-central collisions, the QGP volume saturates and remains constant; instead, entropy fluctuations cause temperature variations in the system. This property can be probed by measuring the correlation between the average transverse momentum (⟨$p_{\rm T}$⟩) and the multiplicity of...

472. Higher-Order Fluctuations: Unveiling the Final Frontier of QCD at the LHC with ALICE

Ilya Fokin (Heidelberg University (DE))

08/04/2025, 12:10

QCD phase diagram & critical point

Oral

Lattice QCD calculations predict that chiral symmetry is restored in a smooth crossover transition between a quark--gluon plasma and a hadron resonance gas (HRG) at vanishing net-baryon density, a condition realized in heavy-ion collisions at the LHC. In this regime, the net-baryon number cumulants computed using the HRG and lattice QCD partition functions are in good agreement up to third...