Study of lepton EDMs in the U(1)X SSM  

作　　者：Lu-Hao Su Dan He Xing-Xing Dong Tai-Fu Feng Shu-Min Zhao 苏路豪;何丹;董幸幸;冯太傅;赵树民(Department of Physics,Hebei University,Baoding 071002,China;Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province,Baoding 071002,China;Department of Physics,Chongqing University,Chongqing 401331,China)

机构地区：[1]Department of Physics,Hebei University,Baoding 071002,China [2]Key Laboratory of High-precision Computation and Application of Quantum Field Theory of Hebei Province,Baoding 071002,China [3]Department of Physics,Chongqing University,Chongqing 401331,China

出　　处：《Chinese Physics C》2022年第9期36-47,共12页中国物理C（英文版）

基　　金：National Natural Science Foundation of China(NNSFC)(11535002,11705045);Natural Science Foundation of Hebei Province(A2020201002);the youth top-notch talent support program of the Hebei Province。

摘　　要：The minimal supersymmetric extension of the standard model(MSSM)is extended to the U(1)XSSM,whose local gauge group is SU(3)C×SU(2)L×U(1)Y×U(1)X.To obtain the U(1)XSSM,we add new superfields to the MSSM,namely,three Higgs singletsηη,S and right-handed neutrinosνi.The charge conjugate and parity(CP)violating effects are considered to study the lepton electric dipole moment(EDM)in the U(1)XSSM.There are more CP violating phases in the U(1)XSSM than in the standard model(SM).In this model,several new parameters(θS,θBB′,θBL)are considered as CP violating phases;hence,there are new contributions to lepton EDMs.This is conducive to exploring the source of CP violation and probing new physics beyond the SM.

关 键 词：LEPTON electric dipole moment 

分 类 号：O572.32[理学—粒子物理与原子核物理]