Speaker
Azumi Sakai
(Nagasaki Institute of Applied Science)
Description
We construct a framework to describe the dynamics of critical fluctuations including the relaxation time for baryon diffusion current and the coupling of the chiral condensate $\sigma$ to the baryon density $n_B$. We apply this to one-dimensionally expanding system with the QCD critical point and investigate the effect of the relaxation time and the mode coupling. We analyze the spacetime evolution and correlation functions of the fluctuations and suggest the importance of dynamical effects of the chiral condensate and baryon diffusion current in identifying critical-point signals in heavy-ion collisions.
This talk is based on the paper: Phys. Rev. C 112, 024907 (2025)