Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2008-01-22
Physics
Nuclear Physics
Nuclear Theory
5 pages, 3 figures
Scientific paper
The parton rescattering effect on the charged hadron forward-backward multiplicity correlation in $pp$ collisions at $\sqrt s$=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 hadron are well compared with experimental data. It turned out that the final state charged hadron pseudorapidity distribution are different from the initial state charged partons. The parton rescattering effect on the charged hadron forward-backward multiplicity correlation increases with increasing parton rescattering strength in the center pseudorapidity region ($|\eta| <1$). However, this effect becomes weaker in the outer pseudorapidity region ($|\eta|> 1$).
Dong Bao-Guo
Li Xiao-Mei
Ma Hai-Liang
Sa Ben-Hao
Yan Yu-Liang
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