Sa, BH , Huazhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China
部门归属:
Huazhong Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China; China Inst Atom Energy, Beijing 102413, Peoples R China; CCAST, World Lab, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要:
We investigated the net charge transfer fluctuation at mid-rapidity region in Au + Au collisions at root s(NN) = 200 GeV. A partonic and hadronic cascade model, PACIAE, is applied to follow the particle transport in both the partonic and hadronic phases. We have determined the factor, kappa, which characterizes the net charge transfer fluctuation. Considering the pure hadronic and pure partonic scenarios, we obtain a factor of 3-5 difference in kappa. However, by switching on the hadronization of partonic matter and introducing the secondary hadron-hadron interactions, the factor kappa will increase and finally approach the value of the pure hadronic scenario within an accuracy of 20%. (c) 2006 Elsevier B.V. All rights reserved.
Zhou, Dai-Mei,Li, Xiao-Mei,Dong, Bao-Guo,et al. Net charge transfer fluctuation in quark-gluon matter and hadron matter[J]. PHYSICS LETTERS B,2006,638(41035):461-463.
