Probing the QCD critical point by higher moments of net-proton multiplicity distributions at STAR

被引：6

作者：

Luo, Xiaofeng ^{[1
,2
]}

机构：

[1] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China

[2] Cent China Normal Univ, Minist Educ, Key Lab Quark & Lepton Phys, Wuhan 430079, Peoples R China

来源：

CENTRAL EUROPEAN JOURNAL OF PHYSICS | 2012年 / 10卷 / 06期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

QCD critical point; higher moments; net-proton; QGP; heavy ion collisions; HEAVY-ION COLLISIONS; FREEZE-OUT; FLUCTUATIONS;

D O I：

10.2478/s11534-012-0080-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Higher moments (kurtosis (kappa), skewness (S) and variance (sigma (2))) of multiplicity distributions are sensitive to the correlation length and can be used to search for the QCD critical point. The moment products kappa sigma (2) and S sigma of net-proton distributions, which are also related to volume independent baryon number susceptibility ratios, can be compared with Lattice QCD and Hadron Resonance Gas (HRG) model calculations. We discuss the recent progress in the higher moments analysis of net-protons multiplicity distributions.

引用

页码：1372 / 1374

页数：3

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