Parton Rescattering Effect on the Charged Hadron Forward-Backward Multiplicity Correlation in pp Collisions at =200 GeV

YAN Yuliang (闫玉良); DONG Baoguo (董保国); ZHOU Daimei (周代梅); LI Xiaomei (李笑梅); MA Hailiang (马海亮); SA Benhao (萨本豪)

doi:10.1088/1009-0630/14/7/02

Plasma Science and Technology > 2012 > 14(7): 577-580. > DOI: 10.1088/1009-0630/14/7/02

YAN Yuliang (闫玉良), DONG Baoguo (董保国), ZHOU Daimei (周代梅), LI Xiaomei (李笑梅), MA Hailiang (马海亮), SA Benhao (萨本豪). Parton Rescattering Effect on the Charged Hadron Forward-Backward Multiplicity Correlation in pp Collisions at =200 GeV[J]. Plasma Science and Technology, 2012, 14(7): 577-580. DOI: 10.1088/1009-0630/14/7/02

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Parton Rescattering Effect on the Charged Hadron Forward-Backward Multiplicity Correlation in pp Collisions at =200 GeV

1 China Institute of Atomic Energy, Beijing 102413, China 2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Collisions, Lanzhou 730000, China 3 Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China 4 CCAST (World Laboratory), P. O. Box 8730 Beijing 100080, China

Funds: supported by National Natural Science Foundation of China (No. 11047142, 10975062, 11075217, and 10705012)

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Received Date: May 16, 2011

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Abstract

Abstract

The parton rescattering effect on the charged hadron forward-backward multiplicity correlation in collisions at =200 GeV is studied by a parton and hadron cascade model, PACIAE, based on the PYTHIA model. The calculated multiplicity and pseudorapidity distribution of the final state charged hadrons are well compared with the experimental data. It is found that the final state charged hadron pseudorapidity distribution is different from the initial state charged partons. The parton rescattering effect on the charged hadron forward-backward multiplicity correlation increases with the increasing parton rescattering strength in the center pseudorapidity region (|η| <1). However, this effect becomes weaker in the outer pseudorapidity region ( |η|>1).
- forward-backward multiplicity correlation,
- parton rescattering,
- collisions

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