The Sixth-Order Cumulants of Net-proton Multiplicity Distributions Measured in STAR at RHIC

被引：7

作者：

Chen, Lizhu ^{[1
]}

机构：

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

来源：

NUCLEAR PHYSICS A | 2013年 / 904卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

HEAVY-ION COLLISIONS; FREEZE-OUT; FLUCTUATIONS; TRANSITION; QCD;

D O I：

10.1016/j.nuclphysa.2013.02.051

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The ratios of different-order cumulants of conserved quantities have become important observables for probing the Quantum Chromodynamics (QCD) phase diagram, due to their sensitivity to the correlation length of the system near the phase transition. It has been predicted that a sixth-order cumulant may change its sign if the freeze-out curve is close to the phase transition temperature. In this paper, preliminary results are presented on the ratios of sixth-order to second-order cumulants (C-6/C-2) of the net-proton multiplicity distributions at mid-rapidity (vertical bar y vertical bar < 0.5) measured in Au+Au collisions at root S-NN = 7.7, 11.5, 19.6, 27, 39, 62.4 and 200 GeV.

引用

页码：471C / 474C

页数：4

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