Two-particle correlation and finite size effects of rapidity bin in ultra-relativistic heavy-ion collisions

Zhou Dai-Cui，

Cai Xu，

Liu Lian-Shou，

Qian Wan-Yan，

Wang Xiao-Rong，

Yang Chun-Bin，

Yan Wen-Biao

Nuclear Science and Techniques

Vol.9, No.2

pp.78-81

Published in print 01 May 1998

23400

Using an aspect of rapidity bins with finite sizes the short-range and long-range behaviors of two-particle correlation, the connection of two particle correlation function with factorial moment and factorial correlator are investigated; and experimental data for ¹⁶O+Em interactions at 14.6, 60 and 200 A GeV and ³²S+¹⁹⁷ Au interactions at 200A GeV are analyzed. It is shown that the bin-average of two-particle correlation function can naturally give a coordinate description of dynamical fluctuation such as the second order factorial moment〈F₂〉 and 1+1 order factorial correlator 〈F_1,1〉.

Ultrarelativistic heavy ion collisionTwo particle correlationFluctuation

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