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Chinese Physics C > 2022, Vol. 46 > Issue(9): 093103 DOI: 10.1088/1674-1137/ac6e35

Study of lepton EDMs in theU(1)XSSM

  • 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

  • The minimal supersymmetric extension of the standard model (MSSM) is extended to the $ U(1)_X $ SSM, whose local gauge group is $S U(3)_C \times S U(2)_L \times U(1)_Y \times U(1)_X$ . To obtain the $ U(1)_X $ SSM, we add new superfields to the MSSM, namely, three Higgs singlets $ \hat{\eta},\; \hat{\bar{\eta}},\; \hat{S} $ and right-handed neutrinos $ \hat{\nu}_i $ . The charge conjugate and parity ( CP)violating effects are considered to study the lepton electric dipole moment (EDM) in the $ U(1)_X $ SSM. There are more CPviolating phases in the $ U(1)_X $ SSM than in the standard model (SM). In this model, several new parameters $ (\theta_S, \theta_{BB^{\prime}}, \theta_{BL}) $ are considered as CPviolating phases; hence, there are new contributions to lepton EDMs. This is conducive to exploring the source of CPviolation and probing new physics beyond the SM.
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Lu-Hao Su, Dan He, Xing-Xing Dong, Tai-Fu Feng and Shu-Min Zhao. The study of lepton EDMs in U(1) XSSM[J]. Chinese Physics C. doi: 10.1088/1674-1137/ac6e35
Lu-Hao Su, Dan He, Xing-Xing Dong, Tai-Fu Feng and Shu-Min Zhao. The study of lepton EDMs in U(1) XSSM[J]. Chinese Physics C. doi:10.1088/1674-1137/ac6e35 shu
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Received: 2022-03-29
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