e^+e^-湮没为轻夸克对的强子产率  

Hadrons Production from Light Quark Jets in e^+e^- Annihilation

作　　者：刘希明[1] 王永刚[1] 张学尧[1] 

机构地区：[1]山东大学物理系,济南250100

出　　处：《高能物理与核物理》2004年第1期11-16,共6页High Energy Physics and Nuclear Physics

基　　金：北京正负电子对撞机国家实验室开放课题资助~~

摘　　要：通过分析e+ e-→q0 q0 →h′s过程轻味夸克jet事例中电磁与强作用激发夸克的平均产生几率 ,得出初始轻味uds夸克jet中各种粒子的产率与初始夸克味道和夸克对数N的依赖关系 .进一步给出领头强子的相对产率 ,同样明显与初始夸克味道和夸克对数N有关 .From calculation and analysis of the mean light flavor quark production probability in light quark jet events, e +e -→q 0→h′s, which involves electromagnetic interaction and hadronic interaction, we determine the dependence of the mean production rates of particles in light (uds) quark jets on the primary quark flavor and number of quark pairs N. Moreover, the relative production rates of leading hadrons are obtained, which shows a strong correlation with the quark pair number N. These results provide a basis for furture studies of particle production in light favor jet at low center-of-mass energy range.

关 键 词：轻味夸克 粒子产率 领头粒子 电子湮没 高能物理学 强子产率 强子喷注 隧道效应 

分 类 号：O572.3[理学—粒子物理与原子核物理]