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Event generator analysis for singly strange particle production data
BenHao, S; Tai A(台安); An, T
1997
发表期刊PHYSICAL REVIEW C
卷号55期号:4页码:2010-2015
通讯作者CCAST,WORLD LAB,BEIJING 100080,PEOPLES R CHINA ; ACAD SINICA,INST THEORET PHYS,BEIJING 100080,PEOPLES R CHINA ; ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA
摘要We have used the event generator LUCIAE to analyze the data of singly strange particle production in pp, pA, and AA reactions at 200A GeV and compared them with the corresponding experimental data and theoretical results of HIJING, VENUS, and RQMD. The results indicate that for reproducing the NA35 data of AA reactions it requires a somewhat larger s quark suppression factor (s=0.3) and shorter Formation time (tau=1 fm/c) of produced particles than for reproducing the experimental data of pp and pA (s=0.2 and tau=1.5 fm/c). This might be understood intuitively from the relationship between the effective string tension and the violence of collision. However, the NA36 data of the negative multiplicity dependence of Lambda in S + Pb reaction at 200 A GeV could not be well reproduced by LUCIAE, VENUS, or RQMD, and the NA36 data prefers model parameters of s=0.2 and tau=1.5 fm/c especially, this seems hard to understand and needs further studies. From comparing the NA35 data of the rapidity distribution of Lambda in S + Ag reactions to the corresponding results of LUCIAE one knows that the effect of varying the s quark suppression factor from 0.2 to 0.3 is smaller than the effect of rescattering with respect to strangeness production.
文章类型Article
学科领域Physics
研究领域[WOS]Physics
DOI10.1103/PhysRevC.55.2010
URL查看原文
语种英语
WOS类目Physics, Nuclear
WOS记录号WOS:A1997WV24000045
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被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239617
专题理论物理室
作者单位中国科学院高能物理研究所
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GB/T 7714
BenHao, S,Tai A,An, T. Event generator analysis for singly strange particle production data[J]. PHYSICAL REVIEW C,1997,55(4):2010-2015.
APA BenHao, S,台安,&An, T.(1997).Event generator analysis for singly strange particle production data.PHYSICAL REVIEW C,55(4),2010-2015.
MLA BenHao, S,et al."Event generator analysis for singly strange particle production data".PHYSICAL REVIEW C 55.4(1997):2010-2015.
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