Strange antibaryon production data and reduction of strangeness suppression in sulphur-nucleus collisions at 200A GeV

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	Strange antibaryon production data and reduction of strangeness suppression in sulphur-nucleus collisions at 200A GeV
	Sa, BH; Tai, A
刊名	PHYSICS LETTERS B
	1997
卷号	399 期号:40910 页码:29-34
关键词	Heavy-ion Collisions Particle-production Matter Model
ISSN号	0370-2693
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.
学科主题	Physics
公开日期	2012-08-29
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/12490]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	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.