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题名: Strange antibaryon production data and reduction of strangeness suppression in sulphur-nucleus collisions at 200A GeV
作者: Sa, BH ;  Tai, A
刊名: PHYSICS LETTERS B
出版日期: 1997
卷号: 399, 期号:40910, 页码:29-34
关键词: HEAVY-ION COLLISIONS ;  PARTICLE-PRODUCTION ;  MATTER ;  MODEL
学科分类: Physics
部门归属: CCAST WORLD LAB,BEIJING,PEOPLES R CHINA; HIROSHIMA UNIV,DEPT PHYS,HIGASHIHIROSHIMA 739,JAPAN; 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: We have used the event generator LUCIAE to analyse NA35 data of the (p) over bar and ii yields and transverse mass distributions and the ratio <(Lambda)over bar>/(p) over bar in pp and central sulphur-nucleus collisions at 200A GeV. The NA35 data could be reproduced reasonably if one assumes that the s quark pair suppression factor and concerns in nucleus-nucleus collisions are larger than the nucleon-nucleon collision. it seems to indicate that NA35 data might imply the reduction of strangeness suppression in ultrarelativistic nucleus-nucleus collisions comparing to the nucleon-nucleon collision at the same energy. However, the ratio <(Lambda)over bar>/(p) over bar approaching to unity in AA collisions comparing to the pp collision does not necessarily mean a flavor symmetry since hadronic rescattering plays a role as well. (C) 1997 Elsevier Science B.V.
收录类别: SCI
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12490
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:
Sa, BH,Tai, A. Strange antibaryon production data and reduction of strangeness suppression in sulphur-nucleus collisions at 200A GeV[J]. PHYSICS LETTERS B,1997,399(40910):29-34.
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