逐事件分析中高阶矩统计起伏的消除

Elimination of Statistical Fluctuations in Higher Order Moments from Event by Event Analysis

逐事件分析是目前高能重离子碰撞研究中受到广泛注意的方法 .由于单个事件的粒子数有限 ,在运用这一方法时 ,首先要解决统计起伏的消除问题 .在现有文献中只讨论过低阶矩 (最高到三阶 )统计起伏的消除 .本文研究了高阶矩中统计起伏的消除 ,给出了普遍公式 .

In the present investigation of high energy multiparticle production,the method of event by event ananysis has received wide interest. Inasmuch as the limited number of particles in a single event,an important problem is that the elimination of statistical fuctuations has to be worked out first of all. In the current literature,the elimination of statistical fuctuations has been only considered in lower order moments (not above the third order). In the present paper,the elimination of statistical fuctuations is studied in higher order moments and a general expression for the elimination of statistical fluctuations in the moments of arbitrary order is given.