400GeV／cpp碰撞产生粒子的方位角结构

The Azimuthal Structure of Particles Produced in pp Collisions at 400 GeV/c

利用不同的方法对４００ＧｅＶ／Ｃｐｐ碰撞多重产生的方位角结构进行了研究．一维和二维标度阶乘矩的分析结果表明两维时的间歇效应较强，这与“喷注形”多粒子产生机制是不矛盾的。但由其它方法分析结果表明方位角结构似乎具有随机的性质，没有“喷注形”多重产生机制的证据。

The azimuthal Structure of partivles produced in pp collisions at 400 GeV/c was investigated by using different methods.The analytic results of one and two-dimensional scaled factorial moments indicate that the intermittent effect is stronger for two-dimensional analysis.It is not contradictory with jet-like multiparticle production mechanism. However,the analytic results of other methods show that the azimuthal structure seems to be of stochastic nature and no evidence of the jet-like multiparticle production mechanism is observed.