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题名: J/psi normal and anomalous suppressions in a hadron and string cascade model
作者: Ben-Hao, S ;  Faessler, A ;  An, T ;  Waindzoch, T ;  Fuchs, C ;  Wang, ZS ;  Hui, W
刊名: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
出版日期: 1999
卷号: 25, 期号:6, 页码:1123-1133
关键词: NUCLEUS-NUCLEUS COLLISIONS ;  HEAVY-ION COLLISIONS ;  J-PSI-SUPPRESSION ;  S-U INTERACTIONS ;  200 GEV-NUCLEON ;  CHARMONIUM SUPPRESSION ;  TRANSVERSE-MOMENTUM ;  PB+PB COLLISIONS ;  GLUON DEPLETION ;  AA COLLISIONS
学科分类: Physics
通讯作者: Ben-Hao, S , Univ Tubingen, Inst Theoret Phys, Morgenstelle 14, D-72076 Tubingen, Germany.
部门归属: Univ Tubingen, Inst Theoret Phys, D-72076 Tubingen, Germany; China Inst Atom Energy, Beijing 102413, Peoples R China; Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: A mechanism for the effective dissociation of a c (c) over bar pair in the colour electric field of strings is introduced into a hadron and string cascade model, i.e. JPCIAE, which is based on the LUND model, simulating ultra-relativistic nucleus-nucleus collisions. This new mechanism together with the known mechanism of nuclear absorption (both baryons and mesons) could reproduce fairly the data of the normal and anomalous J/psi suppressions in minimum bias pA, AB (with light projectile), and Pb + Pb collisions at 200 A GeV/c. However the impact parameter (ET) dependence of the J/psi suppression factor, both, in S + U and Pb + Pb reactions at 200 A GeV/c and 158 A GeV/c, respectively, is not well reproduced. We also tested the additional mechanism of the energy degradation of leading particles, with which both, the normal and anomalous J/psi suppressions in minimum bias pA, AB, and Pb + Pb collisions and the E-T dependence of the J/psi suppression factor are better reproduced.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000080796500005
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13138
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Ben-Hao, S,Faessler, A,An, T,et al. J/psi normal and anomalous suppressions in a hadron and string cascade model[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,1999,25(6):1123-1133.
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