H矩振荡与三火球模型(英文)  

H Moment Oscillation and Three Fire Ball Model

作　　者：张帆 刘连寿[1] 

机构地区：[1]华中师范大学粒子物理研究所,武汉430079

出　　处：《高能物理与核物理》1999年第1期87-92,共6页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金

摘　　要：本文用三火球模型（TFM）研究了pp和pp的实验数据中观察到的H矩振荡行为．发现，和负二项式分布（NBD）相似，完整的TFM分布的H矩是q的单调函数，而当分布在一个不很大的ncut值被截断时发生振荡．这表明，H矩振荡不是pQCD或NBD的特殊性质，而是许多被截断的多重数分布的共同性质．The oscillatory behavior of H moments obtained from the experimental data in pp and pp collisions is studied in the Three-Fireball Model (TFM). It is found that similar to that in the negtive binomial distribution (NBD), the H moment in the full TFM distribution is a monotonic function of q, but oscillates when the distribution is truncated by a not too large value of ncut. This shows that H moment oscillation is not a special property of pQCD or NBD, but is common for many truncated multiplicity distributions.

关 键 词：三火球模型 负二项式分布 H矩振荡 

分 类 号：O572.25[理学—粒子物理与原子核物理]