Conveners
Parallel session 20: QCD phase diagram & critical point I
- Nu Xu (Lawrence Berkeley National Lab)
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...
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...
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...
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...
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...
