Centrality dependence of forward-backward multiplicity correlation in Au+Au collisions at sq root(s{sub NN})=200 GeV

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.044914· OSTI ID:21388965

Yuliang, Yan; Xiaomei, Li; Hailiang, Ma ^[1]; Daimei, Zhou ^[2]; Baoguo, Dong ^[1]; Benhao, Sa ^[1]

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1. China Institute of Atomic Energy, Post Office Box 275(18), Beijing 102413 (China)
2. Institute of Particle Physics, Huazhong Normal University, Wuhan 430079 (China)

We have studied the centrality dependence of charged-particle forward-backward multiplicity correlation strength in Au+Au collisions at sq root(s{sub NN})=200 GeV with a parton and hadron cascade model, PACIAE, based on PYTHIA. The calculated results are compared with the STAR data. The experimentally observed correlation strength characteristics, (1) the approximately flat pseudorapidity dependence in central collisions and (2) the monotonous decrease with decreasing centrality, are reproduced well. However, the theoretical results are larger than the STAR data for the peripheral collisions. We compare the different models and STAR data. A prediction for the forward-backward multiplicity correlation in Pb+Pb collisions at sq root(s{sub NN})=5500 GeV is also given.

• OSTI ID: 21388965
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 4; Other Information: DOI: 10.1103/PhysRevC.81.044914; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ATOM-ATOM COLLISIONS
CHARGED PARTICLES
COLLISIONS
COMPARATIVE EVALUATIONS
CORRELATIONS
FORECASTING
GEV RANGE 100-1000
GOLD
HADRONS
LEAD
MULTIPLICITY
PARTICLE RAPIDITY
PERIPHERAL COLLISIONS
TEV RANGE 01-10
ATOM COLLISIONS
BASIC INTERACTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
EVALUATION
GEV RANGE
INTERACTIONS
METALS
PARTICLE PROPERTIES
STRONG INTERACTIONS
TEV RANGE
TRANSITION ELEMENTS