400GeV/cpp碰撞两粒子关联的角度依赖性  

Angular Dependence of two Particle Correlation in 400GeV/cPP Collisions

作　　者：王韶舜[1] 汪兆民[1] 张杰[1] 

机构地区：[1]中国科学技术大学近代物理系

出　　处：《高能物理与核物理》1997年第11期990-994,共5页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金

摘　　要：利用４００ＧｅＶ／ｃｐｐ碰撞多重产生的实验数据计算了粒子－粒子关联（ＰＰＣ）及其不对称性（ＰＰＣＡ）的角度依赖性．结果与Ｌ３的ｅ＋ｅ－数据有明显的差别，但与ＮＡ２２强子碰撞的实验数据符合得很好；领头粒子对强子碰撞的ＰＰＣＡ分布有很大影响．通过计算两粒子方位角差的分布观察到了方位角关联。The angular dependence of the particle-Particle comeladon (PPC) and its asytiumeby (PPCA) have been calculated by using the experimental data of multiplicity production for pp collisions at 400GeV/ c. The results are different stmngly from the overall behavior of e+ e- data,but agree with the results obtained by NA22 collaboration quite well. The leading particles influence stingily the PPCA disribibudons for hadronic collisions data. The calculated results for the distributions of the azimuthal difference between two pardcles mean that the azimuthal correlation has been observed.

关 键 词：粒子-粒子关联 强子碰撞 角度有序化 方位角关联 

分 类 号：O572.2[理学—粒子物理与原子核物理]