强子-强子碰撞的快度关联花样  

Correlation Patterns in Hadron-Hadron Collisions

作　　者：王美娟[1] 吴元芳[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》2006年第7期652-654,共3页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金(90503001;10475030)国家教育部科学基金(CFKSTIP-704035)资助~~

摘　　要：利用强子-强子碰撞的PYTHIA模型,模拟了质心系能量为s^(1/2)=22,200GeV的质子-质子碰撞．研究了快度空间中末态粒子在固定bin和任意bin中,以及相邻bin中的关联花样．结果发现,相邻bin 的快度关联在中心快度区最强,向边缘区逐渐减弱;固定bin和任意bin的关联在固定bin取不同快度位置时,具有不同的花样．Proton-proton collisions at√s = 22GeV and 200GeV have been simulated by PYTHIA model. The fixed- to-arbitrary and neighboring bin correlation patterns at these two colliding energies are investigated. It has been found that the neighboring bin correlations are the strongest at the central rapidity region and become weaker and weaker toward the two side rapidity regions; while the fixed-to-arbitrary bin correlations vary from one fixed bin to another.

关 键 词：碰撞 快度 关联 花样 

分 类 号：O572[理学—粒子物理与原子核物理]