Forward-backward multiplicity correlations in pp, pp and Au plus Au collisions at RHIC energy

作者：Yan, Yu-Liang^*; Doug, Bao-Guo; Zhou, Dai-Mei; Li, Xiao-Mei; Ma, Hai-Liang; Sa, Ben-Hao

来源：Nuclear Physics A, 2010, 834(1-4): 320C-322C.

DOI：10.1016/j.nuclphysa.2010.01.009

The strength of charged particle forward-backward multiplicity correlation in ppand pp collisions at root s=200 GeV is studied by the PYTHIA model and compared with the UA5 and STAR data correspondingly. It turns out that a factor of 3-4 apparent discrepancy between UA5 and STAR data can be attributed to the differences in detector acceptance and observing bin width. NVe have also studied the centrality bill size dependence of tile correlation strength in 0-10 to 0-5 and to 5% most central Au+Au collisions at root sNN=200 GeV with the PACIAE model. It turns out that the correlation strength decreases with decreasing centrality bin size monotonously.

• 出版日期2010-3-1
• 单位华中师范大学; 中国原子能科学研究院