Explainingh→μ±τ∓,B→K*μ+μ−, andB→Kμ+μ−/B→Ke+e−in a Two-Higgs-Doublet Model with GaugedLμ−Lτ

2015/01/31 by Andreas Crivellin, Giancarlo D’Ambrosio, Giancarlo D'Ambrosio +1 · 4 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevlett.114.151801

published as Phys. Rev. Lett. 114, 151801 (2015) · 6 pages, 2 figures, corrected formula for LFV tau decay with new HFAG limit. References added, accepted for publication in PRL

arxiv created 2015/03/10 · openalex publication_date 2015/04/14 · arxiv updated 2015/04/15 · openalex created_date 2020/05/13 · openalex updated_date 2026/08/05

Abstract

The LHC has observed, so far, 3 deviations from the Standard Model (SM) predictions in flavor observables: LHCb reported anomalies in B\ensuremath→K^*\ensuremathμ⁺\ensuremathμ^\ensuremath- and R(K)=B\ensuremath→K\ensuremathμ⁺\ensuremathμ^\ensuremath-/B\ensuremath→Ke⁺e^\ensuremath-, while CMS found an excess in h\ensuremath→\ensuremathμ\ensuremathτ. 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_\ensuremathμ\text\ensuremath-L_\ensuremathτ symmetry. We find that, despite the constraints from \ensuremathτ\ensuremath→\ensuremathμ\ensuremathμ\ensuremathμ and B_s\text\ensuremath-B_s mixing, one can explain h\ensuremath→\ensuremathμ\ensuremathτ, B\ensuremath→K^*\ensuremathμ⁺\ensuremathμ^\ensuremath- and R(K) simultaneously, obtaining interesting correlations among the observables.

Citations

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Comprehensive analysis on lepton flavor violating Higgs boson toμ∓τ±decay in supersymmetry withoutRparity
• Limits onτlepton-flavor violating decays into three charged leptons
• SU(2)×U(1)Gauge Invariance and the Shape of New Physics in RareBDecays
• NEW PHYSICS FROM ELECTRIC CHARGE QUANTIZATION?
• SimplestZ′model
• Neutrino Trident Production: A Powerful Probe of New Physics with Neutrino Beams
• Theory and phenomenology of two-Higgs-doublet models
• Searches for Lepton Flavor Violation in the Decaysτ±→e±γandτ±→μ±γ
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Big-Bang Nucleosynthesis

Cited by

• Round table: Flavour anomalies inb→sl+l−processes
• Reconciling B-meson decay anomalies with neutrino masses, dark matter and constraints from flavour violation
• R_K^(*) and the origin of Yukawa couplings
• Gauge-invariant implications of the LHCb measurements on lepton-flavor nonuniversality