The study of non-collectivity by the forward-backward multiplicity correlation function

被引：10

作者：

Li, Na ^{[1
]}

Shi, Shusu ^{[2
]}

Tang, Aihong ^{[3
]}

Wu, Yuanfang ^{[2
]}

机构：

[1] Huazhong Univ Sci & Technol, Dept Phys, Wuhan 430074, Peoples R China

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

[3] Brookhaven Natl Lab, Upton, NY 11973 USA

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2012年 / 39卷 / 11期

基金：

中国国家自然科学基金;

关键词：

COLLISIONS;

D O I：

10.1088/0954-3899/39/11/115105

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：

We propose a forward-backward multiplicity correlation function C-FB(N), which is experimentally accessible, to measure the non-collectivity contribution. It is found that the function is sensitive to both the jet contribution and small number statistics. We point out that the effect of the latter is also involved in the previous studies of the forward-backward elliptic correlation function but was misinterpreted as a contribution from jets. We study the C-FB(N) in Au+Au collision at root S-NN = 200 GeV with a multiphase transport model (AMPT). The result shows that the estimated jet contribution is much smaller than in the previous study due to the finite number statistics which has not been noticed before. The connection between this study and the forward-backward elliptic correlation function is also discussed.

引用

页数：8

共 24 条

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