摘要
利用CERNNA27合作组提供的LEBC泡室照片测量了400GeV／cpp碰撞产生的带电粒子赝快度分布．利用星形积分法计算标度阶乘矩Fq直至q＝7．分析结果表明可能存在非热相跃迁和两种不同的多粒子产生方式．观察到涨落的多重分形结构支持粒子产生的随机级联模型．
The pseudorapidity distribution for charged prides Produced in PP collisions at 400GeV/c has been measured by using the LEBC films offered by the CERN NA27 collaboration. The fastorial moments up to q=7 have been calculated by star integer method. The analytic results indicate that a non-thermal phase transition and two different regimes of multiparticle production may exist. The multifractal structure of the fluctuation has been observed supporting the random cascade model of particle production.
出处
《高能物理与核物理》
CSCD
北大核心
1999年第9期841-845,共5页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金!19675033
关键词
非热相跃迁
分形性
尖峰事例
高能粒子碰撞
non-thermal phase transition
multifractality, star integer, spike events
