Z′particles and e^+ e^- → τ^+ μ^-  

作　　者：TieJun Gao TaiFu Feng XueQian Li ZongGuo Si ShuMin Zhao 

出　　处：《Science China(Physics,Mechanics & Astronomy)》2010年第11期1988-1991,共4页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos.10975027,10675027,and 10775073)

摘　　要：We analyze the cross section of e + e-→τ + μ-within the frameworks of SM and its Z extension.The theoretical prediction of the SM on the total cross section is suppressed by the tiny neutrino masses.On the other hand,the contributions from Z to the cross section are enhanced drastically because of the tree level FCNC couplings among Z and leptons.We analyze the cross section of e + e-→τ + μ-within the frameworks of SM and its Z extension.The theoretical prediction of the SM on the total cross section is suppressed by the tiny neutrino masses.On the other hand,the contributions from Z to the cross section are enhanced drastically because of the tree level FCNC couplings among Z and leptons.

关 键 词：Z′model FCNC 

分 类 号：N[自然科学总论]