Unstable mode of the net-baryon density near the spinodal decomposition region  

作　　者：Shanjin Wu 吴善进

机构地区：[1]School of Nuclear Science and Technology,Lanzhou University,Lanzhou 730000,China

出　　处：《Chinese Physics C》2025年第4期40-45,共6页中国物理C(英文版)

基　　金：Supported by the National Natural Science Foundation of China(12305143)and the China Postdoctoral Science Foundation(2023M731467)。

摘　　要：This paper investigates conserved net-baryon multiplicity fluctuations near the spinodal decomposition region based on the stochastic diffusion equation,model B.The convex anomaly in the spinodal region induces the unstable mode,and the correlation function dominates at the harder mode.The unstable mode results in oscillating behavior of second-order multiplicity fluctuations with increasing spatial interval.This oscillating behavior of multiplicity fluctuations with respect to acceptance may indicate the existence of the convex anomaly of spinodal decomposition.

关 键 词：QCD phase transition spinodal decomposition multiplicity fluctuation relativistic heavyioncollisions 

分 类 号：O572.33[理学—粒子物理与原子核物理]