e^+e^-湮没轻夸克事例的奇异抑制  

Strangeness Suppression in e^+e^-Light Flavour Jets

作　　者：刘希明[1] 孙旭滨[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》2007年第2期138-142,共5页High Energy Physics and Nuclear Physics

摘　　要：按照夸克组合模型,通过分析给出e^+e^-→q00→h's过程轻味夸克jet事例中各种粒子的产生几率以及相对比值．给出奇异、非奇异粒子多重数比率γ与奇异抑制因子λ之间的关系,不需要假设奇异抑制因子改变,能够解释粒子比率增大的实验．From the simple physical picture of quark combination model, we obtain the generate probabilities of various particles and relative ration in e^＋e^→q0-↑q0→h′s process, and find that the relationship between the ration of strange hadron to unstrange hadron γ and the strangeness suppression factor λ. Our results can be used to explain particle ration enhancement observed in experiments without assumption of strangeness suppression factor enhancement.

关 键 词：夸克几率 奇异抑制 奇异非奇异粒子比率 

分 类 号：O572.33[理学—粒子物理与原子核物理]