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Strange antibaryon production data and reduction of strangeness suppression in sulphur-nucleus collisions at 200A GeV
Sa, BH; Tai, A
1997
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号399期号:40910页码:29-34
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.
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
关键词Heavy-ion Collisions Particle-production Matter Model
学科领域Physics
收录类别SCI
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12490
专题理论物理所1978-2010年知识产出
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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.
APA Sa, BH,&Tai, A.(1997).Strange antibaryon production data and reduction of strangeness suppression in sulphur-nucleus collisions at 200A GeV.PHYSICS LETTERS B,399(40910),29-34.
MLA Sa, BH,et al."Strange antibaryon production data and reduction of strangeness suppression in sulphur-nucleus collisions at 200A GeV".PHYSICS LETTERS B 399.40910(1997):29-34.
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