Charged Lepton Flavor Violation in the B-L symmetric SSM

2024/02/29 by Dong, Xing-Xing, Zhao, Shu-Min, Huo, Jia-Peng +2
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2402.19131

Abstract

Charged lepton flavor violation (CLFV) represents a clear new physics (NP) signal beyond the standard model (SM). In this work, we investigate CLFV processes l_j^-→ l_i^- γ utilizing mass insertion approximation(MIA) in the minimal supersymmetric extension of the SM with local B-L gauge symmetry (B-LSSM). The MIA method can provide a set of simple analytic formulae for the form factors and the associated effective vertices, so that the movement of the CLFV decays l_j^-→ l_i^- γ with the sensitive parameters will be intuitively analyzed. Considering the SM-like Higgs boson mass and the muon anomalous dipole moment (MDM) within 4σ, 3σ and 2σ regions, we discuss the corresponding constraints on the relevant parameter space of the model.

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