Baryon number diffusion with critical fluctuations
Résumé
The description of dynamical fluctuations near the QCD critical point in heavy-ion collisions is crucial for understanding the existing and upcoming experimental data from the beam energy scan programs. In this talk we discuss the evolution of fluctuations of the net-baryon density as given by a stochastic diffusion equation. We study equilibrium as well as dynamical systems for which we can show the impact of nonequilibrium effects on the second-order moment.
Mots clés
QCD phase diagram
QCD critical point
critical fluctuations
stochastic baryon number diffusion
real-time dynamics
quantum chromodynamics: critical phenomena
beam: energy
fluctuation
diffusion
baryon number
stochastic
dynamical system
heavy ion: scattering
baryon: density
transport theory
numerical calculations