摘要
基于多源热模型和朗道四分量模型,并借助于蒙特卡洛方法分析了Be+Be在束流动量分别为19 A、30 A、40 A、75 A和150 A GeV/c下所产生可识别粒子π^(±),K^(±),p和p的横动量分布和快度分布.由理论计算结果和实验数据的对比,可以看出理论较好地描述了实验变化趋势,从而说明多源热模型分析由Be+Be在不同束流动量的碰撞系统中所产生末态粒子分布的可行性.
Based on the multi-source thermal model and Landau four-component model,the transverse momentum distributions and rapidity distributions of identifiable particles π^(±),K^(±),p and p produced by Be+Be at the beam momentum of 19 A,30 A,40 A,75 A and 150 A Gev/c were ana-lyzed by Monte Carlo method,respectively.By contrast of the theoretical calculations and experimen-tal data,the experimental variation trend could be described well by the theory.Therefore,it indicated that the distribution of final-state particles produced in Be+Be collisions system at different beam mo-menta analyzed by the multi-source thermal model was feasible.
作者
王诗文
王二琴
高丽娜
WANG Shiwen;WANG Erqin;GAO Lin(College of Computer Science and Technology,Taiyuan Normal University,Jinzhong Shanxi 030619,China;Department of Physics,Taiyuan Normal University,Jinzhong Shanxi 030619,China)
出处
《太原师范学院学报（自然科学版）》
2024年第2期42-52,共11页
Journal of Taiyuan Normal University:Natural Science Edition
基金
太原师范学院大学生创新创业项目(CXCY2276)。
关键词
横动量分布
快度
末态粒子
四分量朗道模型
高能碰撞
transverse momentum distribution
rapidity
final-state particles
four-component Landau model
high energy collision
