高能重离子碰撞中产生的强子和反强子的横质量分布  

Transverse Mass Distributions of(anti)Hyperons Produced in Heavy-Ion Collisions at High Energy

作　　者：谢文杰[1] 

机构地区：[1]运城学院物理与电子工程系,山西运城044000

出　　处：《山西师范大学学报（自然科学版）》2011年第2期54-58,共5页Journal of Shanxi Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(10975095);山西省自然科学基金资助项目(2007011005)

摘　　要：基于多源理想气体模型,用蒙特卡罗方法计算了入射动量为158 A GeV/c的铅-铅碰撞中产生的∧,Ξ-和Ω-强子以及它们的反强子的横质量分布,发现模型计算的结果与NA57合作组的实验数据相一致.A multisource ideal gas model is used to describe processes of heavy-ion collisions at high energy.The transverse mass distributions of ∧,Ξ-and Ω-,hyperons,and their antihyperons produced in Pb-Pb collisions at 158 A GeV/c are calculated by using the Monte Carlo method.It is found that our calculated results are in agreement with the experimental data of the NA57 Collaboration.

关 键 词：横质量分布 铅-铅碰撞 多源理想气体模型 

分 类 号：O571.6[理学—粒子物理与原子核物理]