7Be+9Be碰撞中所产生可识别粒子的横动量谱和快度谱分析

Analysis of Transverse Momentum Spectra and Rapidity Spectra of Identifiable Particles Produced in 7Be+9Be Collisions

王诗文 ¹王二琴 ²高丽娜²

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作者信息

1. 太原师范学院计算机科学与技术学院,山西晋中 030619
2. 太原师范学院物理系,山西晋中 030619
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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19A、30A、40A、75A和150AGeV/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.

Abstract

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.

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

Key words

transverse momentum distribution/rapidity/final-state particles/four-component Landau model/high energy collision

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出版年

2024

太原师范学院学报(自然科学版)

太原师范学院

太原师范学院学报(自然科学版)

影响因子：0.127

ISSN：1672-2027

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