2019/08/31 by Lei Wang, Yang Zhang · 1 citation
Physics and Astronomy · #hep-ph
paper · pdf · doi:10.1103/physrevd.100.095005
published as Phys. Rev. D 100, 095005 (2019) · 15 pages, 3 figures
arxiv created 2021/04/08 · arxiv updated 2021/04/09
We propose a two-Higgs-doublet model in which one Higgs doublet has the same interactions with fermions as the SM, and another Higgs doublet only has the μ-τ LFV interactions. Assuming that the Yukawa matrices are real and symmetric, we impose various relevant theoretical and experimental constraints, and find that the excesses of muon g-2 and lepton flavour universality in the τ decays can be simultaneously explained in the region of small mass splittings between the heavy CP-even Higgs and the CP-odd Higgs (mA > mH). The multi-lepton event searches at the LHC can sizably reduce the mass ranges of extra Higgses, and mH is required to be larger than 560 GeV.