Comprehensive analysis on lepton flavor violating Higgs boson toμ∓τ±decay in supersymmetry withoutRparity

Abstract

In this paper we examine thoroughly the Higgs boson to Ç AE decay via processes involving R parity violating couplings. By means of full one-loop diagrammatic calculations, we found that even if known experimental constraints, particularly including the stringent sub-eV neutrino mass bounds, give strong restrictions on some of the R parity violating parameters, the branching ratio could still achieve notable value in the admissible parameter space. Hence, the flavor violating leptonic decay is of interest to future experiments. We present here key results of our analysis. Based on the analysis, we give some comments on h 0 ! e Ç AE and h 0 ! e Ç AE also.

$$\mu \rightarrow e \gamma $$ μ → e γ in the 2HDM: an exercise in EFT

“…The one-and two-loop contributions to μ → eγ of the neutral Higgses were calculated by Chang et al [5], and their result, in the decoupling limit, is given in Eqs. (20), (19), (21), (23) and (25).…”

“…The decay μ → eγ has been extensively studied in the 2HDM [3,[15][16][17][18][19][20][21][22][23][24][25][26][27], particularily in connection [29][30][31][32][33][34][35][36][37] with the recent LHC [28,38] excess in h → τ ± μ ∓ . Chang, Hou and Keung [5] (CHK) calculate the contributions to μ → eγ of neutral Higgs bosons with flavour-changing couplings.…”

Analysis of the h, H, A → τμ decays induced from SUSY loops within the Mass Insertion Approximation

“…On the theoretical side, the subject of LFVHD has been studied for a long time in the literature within various models beyond the SM (for recent works see, for instance, ), but the most frequently explored ones are the supersymmetric (SUSY) models because the needed feature of flavor mixing among particles of different generations to produce these exotic decays is easily incorporated and well justified in the SUSY particles sector [32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47]. More specifically, it is the flavor mixing among the three generations of the charged sleptons and/or sneutrinos, typically present in SUSY models, what produces via their contributions at the one-loop level, these interesting Higgs decay channels with Lepton Flavor Violation (LFV).…”

Search for lepton flavour violating decays of the Higgs boson to μτ and eτ in proton-proton collisions at $$ \sqrt{s}=13 $$ TeV

“…These decays are forbidden in the SM but occur in many new physics scenarios. These include supersymmetric [5][6][7][8][9][10][11][12][13], composite Higgs [14,15], or Randall-Sundrum models [16][17][18], SM extensions with more than one Higgs boson doublet [19,20] or with flavour symmetries [21], and many other scenarios [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36]. The presence of LFV Higgs boson couplings would allow τ → µ and τ → e to proceed via a virtual Higgs boson [37,38].…”