https://doi.org/10.1140/epjc/s10052-025-14750-5
Regular Article - Theoretical Physics
Lepton flavor violating decays of Higgs boson in the NB-LSSM
1
College of Physics Science and Technology, Hebei University, 071002, Baoding, China
2
Hebei Key Laboratory of High-precision Computation and Application of Quantum Field Theory, 071002, Baoding, China
3
Hebei Research Center of the Basic Discipline for Computational Physics, 071002, Baoding, China
4
Departamento de Física and CFTP, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1049-001, Lisbon, Portugal
5
Department of Physics, Chongqing University, 401331, Chongqing, China
Received:
7
May
2025
Accepted:
9
September
2025
Published online:
7
October
2025
Lepton flavor violation (LFV) represents a clear new physics (NP) signal beyond the standard model (SM). NB-LSSM, the next to minimal supersymmetric extension of the SM with local B-L gauge symmetry, includes three Higgs singlets and three generations of right-handed neutrinos in the basis of MSSM, motivated by the new definition of SM-like Higgs resultly from the introducing of three Higgs singlets which mix with the two Higgs doublets at the tree level in the NB-LSSM. We calculate LFV processes 
in the mass eigenstate basis and the electroweak interaction basis separately, and the latter adopts the mass insertion approximation (MIA) method. In the suitable parameter space, we obtain the reasonable numerical results. At the same time, the corresponding constraints from the LFV rare decays 
are considered to analyze the numerical results.
© The Author(s) 2025
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