B^0-B^0 Mixing in Local Gauged Baryon and Lepton Numbers

作     者：孙飞 冯太傅 罗国慧 赵树民 孙科盛 寇丽娜 

作者机构：Department of Physics Dalian University of Technology Department of Physics Hebei University Center for High Energy Physics Peking University 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2013年第60卷第12期

页      面：721-726页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Supported by the National Natural Science Foundation of China(NNSFC)under Grant Nos.10975027 11275036 and 11047002 

主　　题：重子数 混合 轻子 有效哈密顿方法 标准模型 计算结果 对称性 阿拉伯 

摘      要：Using the efective Hamiltonian method, we analyze the B0-ˉB0mixing in the extension of the standard model(SM) where baryon number and lepton number are local gauge symmetries. The numerical results indicate the correction from the extra particles to the mass diference mB is significant. There is a 60% enhancement compared to the SM prediction for mB at most, which agrees with the current experimental result.