The study of lepton EDMs in U(1)_X SSM

2022/01/03 by Lu-Hao Su, Su, Lu-Hao, He, Dan +4
Physics and Astronomy · #Particle physics theoretical and experimental studies #Neutrino Physics Research #Quantum and Classical Electrodynamics

paper · pdf · doi:10.48550/arxiv.2201.00517

Abstract

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 the new superfields to the MSSM, namely: three Higgs singlets η,~η,~S and right-handed neutrinos ν_i. The CP violating effects are considered to study the lepton electric dipole moment(EDM) in U(1)_XSSM. The CP violating phases in U(1)_XSSM are more than those in the standard model(SM). In this model, some new parameters (θ_S, θ_BB^′, θ_BL) as CP violating phases are considered, so there are new contributions to lepton EDMs. It is conducive to exploring the source of CP violation and probing new physical beyond SM.

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