400GeV/c pp碰撞多粒子产生的不稳定性分析  

Erraticity Analysis of Multiparticle Production in pp Collisions at 400GeV/c

作　　者：王韶舜[1] 吴冲[1] 

机构地区：[1]中国科学技术大学近代物理系,合肥230027

出　　处：《高能物理与核物理》2000年第4期285-289,共5页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金!(19975045)

摘　　要：对４００ＧｅＶ／ｃ ｐｐ碰撞多粒子产生的实验数据作了不稳定性分析．计算了新的不稳定性参数．将它们与曹珍和华家照利用软相互作用模型ＥＣＯＭＢ模拟ＮＡ２２能量范围的强子一强子碰撞实验所得到的结果相比较，相似性清楚可见．这表明ＥＣＯＭＢ模型是一个软相互作用多粒子产生模型．它能重现高能强子碰撞末态事例结构的涨落．The erraticity analysis was performed for the experimental data of multiparticle production in pp collisions at 400GeV/c. New parameters of erraticity are calculated. Com- paring this with the results obtained by Cao Zhen and Rudolph C. Hwa, they have used a soft-interaction model ECOMB to simulate the experiment of hadron-hadron collisions at NA22 energy region, a similarity is seen clearly. This means that the model ECOMB is a soft-interaction multiparticle production model which can reproduce the fluctuations of the event structure of the final states of high energy hadronic collisions.

关 键 词：软相互作用 多粒子产生 不稳定性 高能粒子碰撞 

分 类 号：O572[理学—粒子物理与原子核物理]