English

Study on muon MDM and lepton EDM in BLMSSM via the mass insertion approximation

High Energy Physics - Phenomenology 2023-03-07 v3

Abstract

In the framework of the MSSM extension with local gauged baryon and lepton numbers (BLMSSM), we calculate the muon anomalous magnetic dipole moment (MDM) and lepton (e,μ,τ)(e, \mu, \tau) electric dipole moment (EDM), and discuss how the muon MDM and lepton EDM depend on the parameters within the mass insertion approximation. Among many parameters, tanβ\tan{\beta},~gLg_L,~mLm_L and μH\mu_H are more sensitive parameters for aμBLa^{BL}_{\mu}. Considering the experimental limitations, our best numerical result of aμBLa^{BL}_{\mu} is around 2.5×1092.5 \times 10^{-9}, which can well compensate the departure between the experiment data and Standard Model (SM) prediction. The CP violating phases in BLMSSM are more than those in the MSSM, including new parameters θμL\theta_{\mu_L} and θL\theta_{L}. They can give large contributions, which play an important role in exploring the source of CP violation and probing new physics beyond SM.

Keywords

Cite

@article{arxiv.2211.10848,
  title  = {Study on muon MDM and lepton EDM in BLMSSM via the mass insertion approximation},
  author = {Xi Wang and Shu-Min Zhao and Xin-Xin Long and Yi-Tong Wang and Tong-Tong Wang and Hai-Bin Zhang and Tai-Fu Feng and Rong-Xiang Zhang},
  journal= {arXiv preprint arXiv:2211.10848},
  year   = {2023}
}
R2 v1 2026-06-28T06:17:35.821Z