Explainingh→μ±τ∓,B→

Abstract

The LHC has observed, so far, 3 deviations from the Standard Model (SM) predictions in flavor observables: LHCb reported anomalies in B→K*μ(+)μ(-) and R(K)=B→Kμ(+)μ(-)/B→Ke(+)e(-), while CMS found an excess in h→μτ. We show, for the first time, how these deviations from the SM can be explained within a single well-motivated model: a two-Higgs-doublet model with gauged L(μ)-L(τ) symmetry. We find that, despite the constraints from τ→μμμ and B(s)-B¯(s) mixing, one can explain h→μτ, B→K*μ(+)μ(-) and R(K) simultaneously, obtaining interesting correlations among the observables.

Leptoquark induced rare decay amplitudesh→τ∓μ±andτCheung1, Keung2, Tseng3 2016Phys. Rev. D

“…from BaBar experiment [3] (2) at low energy. Indeed, there are a lot of theoretical activities [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] along this line of investigation. There were also a number of studies on LFV Higgs boson decays in literature [23].…”

Higgs decay h → μτ with minimal flavor violation

“…Subsequent to the h → µτ announcement by CMS, its signal hypothesis was theoretically examined in the contexts of various scenarios involving enlarged scalar sectors [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43] or nonrenormalizable effective interactions [39][40][41][42][43][44].…”

Two Higgs doublets to explain the excesses pp → γγ(750 GeV) and h → τ ± μ ∓

“…This model has been studied before [104][105][106][107][108][109][110], and, with renewed interest, after the CMS excess was announced [111][112][113][114][115][116][117]. The aim of the present paper is to study whether a simple 2HDM could explain both the diphoton excess and the LFV Higgs decay.…”