高能Pb-Pb中心碰撞中产生的Λ和■强子的横质量分布和快度分布(英文)  

Transverse Mass and Rapidity Distributions of Λ and ■ Hyperons Produced in Central Pb-Pb Collisions at High Energies

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：《原子核物理评论》2010年第3期274-279,共6页Nuclear Physics Review

基　　金：National Natural Science Foundation of China(10975095);Natural Science Foundation of Shanxi Province(2007011005)~~

摘　　要：用多源理想气体模型和三火球模型分析并计算了能量在40,80,158AGeV下中心Pb-Pb碰撞中所产生的Λ和■强子的横质量分布和快度分布,发现模型计算的结果与NA49合作组的实验结果相一致。The transverse mass and rapidity distributions of Lambda and Antilambda hyperons produced in central Pb-Pb collisions at 40,80,and 158 AGeV are described by the multisource ideal gas model and the three-fireball model.The results calculated by the models are compared and found to be in agreement with the experimental data of the NA49 Collaboration.

关 键 词：横质量 快度 Pb-Pb碰撞 多源理想气体模型 三火球模型 

分 类 号：O571.6[理学—粒子物理与原子核物理]