t→cγ and t→cg in Local Gauged Baryon and Lepton Numbers  

作　　者：高铁军 冯太傅 孙飞 

机构地区：[1]Department of Physics,Dalian University of Technology [2]Department of Physics,Hebei University

出　　处：《Communications in Theoretical Physics》2014年第1期95-100,共6页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos.10975027,11275036,11047002;Natural Science Fund of Hebei University under Grant Nos.2011JQ05 and 2012-242

摘　　要：In this paper, we calculate the top quark rare decays t →cγ and v in an extension of the standard model, where baryon number and lepton number are local gauge symmetries. Adopting reasonable assumptions on the parameter space, we find that the branching ratios of t →cγ and t →cg can reach 10^-6 and 10^-5 respectively, which can be detected in near future.

关 键 词：local gauge symmetry baryon and lepton numbers top quark decays 

分 类 号：O572.33[理学—粒子物理与原子核物理]