Lepton-flavor-violating Higgs decay $h\to \mu \tau$ and muon anomalous magnetic moment in a general two Higgs doublet model

Abstract

A two Higgs doublet model (2HDM) is one of the minimal extensions of the Standard Model (SM), and it is well-known that the general setup predicts the flavor-violating phenomena, mediated by neutral Higgs interactions. Recently the CMS collaboration has reported an excess of the lepton-flavor-violating Higgs decay in $h\to \mu \tau$ channel with a significance of 2.5 $\sigma$. We investigate the CMS excess in a general 2HDM with tree-level Flavor Changing Neutral Currents (FCNCs), and discuss its impact on the other physical observations. Especially, we see that the FCNCs relevant to the excess can enhance the neutral Higgs contributions to the muon anomalous magnetic moment, and can resolve the discrepancy between the measured value and the SM prediction. We also find that the couplings to be consistent with the muon g-2 anomaly as well as the CMS excess in $h\to \mu \tau$ predict the sizable rate of $\tau \to \mu \gamma$, which is within the reach of future B factory.

6 pages, 3 figures, revised Fig.3, corrected Eq. (12), added references, accepted for publication in JHEP

References in corpus (1)

• Explaining $h\to {\mu }^{\pm }{\tau }^{\mp }$, $B\to K^{\ast }{\mu }^{+}{\mu }^{-}$ and $B\to K{\mu }^{+}{\mu }^{-}/B\to K{e}^{+}{e}^{-}$ in a two-Higgs-doublet model with gauged $L_{\mu }-L_{\tau }$

Cited by in corpus (73)

• From the trees to the forest: a review of radiative neutrino mass models
• A perturbed lepton-specific two-Higgs-doublet model facing experimental hints for physics beyond the Standard Model
• Status of the semileptonic $B$ decays and muon g-2 in general 2HDMs with right-handed neutrinos
• $(g-2{)}_{\mu }$, Lepton Flavour Violation and $Z$ Decays with Leptoquarks: Correlations and Future Prospects
• Flavor constraints on the Two Higgs Doublet Models of $Z_2$ symmetric and aligned types
• Flavor-specific scalar mediators
• Lepton flavor (universality) violation in rare kaon decays
• A $L_{\mu }-L_{\tau }$ theory of Higgs flavor violation and $(g-2{)}_{\mu }$
• Loop effects of heavy new scalars and fermions in $b\to s{\mu }^{+}{\mu }^{-}$
• $b\to s{\ell }^{+}{\ell }^{-}$ Transitions in Two-Higgs-Doublet Models
• Full parameter scan of the Zee model: exploring Higgs lepton flavor violation
• Scalar doublet models confront $\tau$ and $b$ anomalies
• $\tau$- and $\mu$-physics in a general two Higgs doublet model with $\mu -\tau$ flavor violation
• A joint explanation of W-mass and muon g-2 in 2HDM
• Testing the 2HDM explanation of the muon g-2 anomaly at the LHC
• Leptoquark explanation of $h\to \mu \tau$ and muon $(g-2)$
• Higgs lepton flavour violation: UV completions and connection to neutrino masses
• Natural Supersymmetry, Muon $g-2$, and the Last Crevices for the Top Squark
• Naturally Large Radiative Lepton Flavor Violating Higgs Decay Mediated by Lepton-flavored Dark Matter
• Probing $\mu \tau$ flavor-violating solutions for the muon $g-2$ anomaly at Belle II
• Higgs Decay $h\to \mu \tau$ with Minimal Flavor Violation
• Muon specific two-Higgs-doublet model
• Decay of standard model-like Higgs boson $h\to \mu \tau$ in a 3-3-1 model with inverse seesaw neutrino masses
• $h,Z\to {\ell }_i{\bar{\ell }}_j$, $\Delta a_{\mu }$, $\tau \to (3\mu ,\mu \gamma )$ in generic two-Higgs-doublet models
• Mu to e gamma and matching at mW
• Heavy Higgs Searches: Flavour Matters
• New Signatures of Flavor Violating Higgs Couplings
• Likelihood analysis of the flavour anomalies and $g-2$ in the general two Higgs doublet model
• Flavor violating signatures of lighter and heavier Higgs bosons within the Two Higgs Doublet Model Type-III at the LHeC
• Higgs lepton flavor violating decays in Two Higgs Doublet Models
• Bounds on LFV Higgs decays in a vector-like lepton model and searching for doubly charged leptons at the LHC
• Revisiting Generalized Two Higgs Doublet Model in the Light of Muon Anomaly and Lepton Flavor Violating Decays at HL-LHC
• Two-loop Prediction of the Anomalous Magnetic Moment of the Muon in the Two-Higgs Doublet Model with GM2Calc 2
• Reach and complementarity of $\mu \to e$ searches
• Collider Constraints on Lepton Flavor Violation in the 2HDM
• Muon $g-2$ in a $U(1)$-symmetric Two-Higgs-Doublet Model
• Flavor techniques for LFV processes: Higgs decays in a general seesaw model
• Leptophilic bosons and muon g-2 at lepton colliders
• Universal Inverse seesaw mechanism as a source of the SM fermion mass hierarchy
• 125 GeV Higgs decay with lepton flavor violation in the $\mu \nu$SSM
• Searches for Lepton Flavor Violation in Tau Decays at Belle II
• Lepton flavor violating $Z$-boson couplings from non-standard Higgs interactions
• A $\mu$-$\tau$-philic scalar doublet under $Z_n$ flavor symmetry
• The Ellipse of Muon Dipole Moments
• On the amplitudes for the CP-conserving $K^{\pm }(K_S)\to {\pi }^{\pm }({\pi }^0){\ell }^{+}{\ell }^{-}$ rare decay modes
• Flavor physics in the multi-Higgs doublet models induced by the left-right symmetry
• The ATLAS Diboson Resonance in Non-Supersymmetric SO(10)
• Higgs-$\mu$-$\tau$ Coupling at High and Low Energy Colliders
• The direct CP violation in a general two Higgs doublet model
• A $\mu$-$\tau$-philic Higgs doublet confronted with the muon g-2, $\tau$ decays and LHC data
• Higgs boson decays with lepton flavor violation in the $B-L$ symmetric SSM
• Collider Prospects for Muon $g-2$ in General Two Higgs Doublet Model
• Model with a gauged lepton flavor SU(2) symmetry
• Constraining Lepton Flavor Violating Higgs Couplings at the HL-LHC in the Vector Boson Fusion Channel
• Lepton-flavour violating decays in theories with dimension 6 operators
• Looking for New Physics via Semi-leptonic and Leptonic rare decays of $D$ and $D_s$
• $K\to \pi {\ell }^{+}{\ell }^{-}$ form factor in the Large-N${}_c$ and cut-off regularization method
• Lepton flavor violating decays of the SM-like Higgs boson $h\to e_i{e}_j$, and $e_i\to e_j\gamma$ in a flipped 3-3-1 model
• Lepton flavor violating Higgs decay at $e^{+}{e}^{-}$ colliders
• Current Status of the Muon g-2 Interpretations within Two-Higgs-Doublet Models
• Lightness of a Higgs Boson and Spontaneous CP-violation in the Lee Model: An Alternative Scenario
• Fermion mass hierarchy and g-2 anomalies in an extended 3HDM Model
• Two-body lepton-flavour-violating decays in a 2HDM with soft family-lepton-number breaking
• Flavor-changing light bosons with accidental longevity
• Detecting a μτ-philic Z' boson via photon initiated processes at the LHC
• Michel parameters for $\tau$ decays $\tau \to l\nu \bar{\nu }(l=e,\mu )$ in a general two Higgs doublet model with $\mu -\tau$ flavor violation
• Dark sectors and enhanced $h\to \tau \mu$ transitions
• Decadal Mission for the New Physics Higgs/Flavor Era
• The Charged Higgs from the Bottom-Up: Probing Flavor at the LHC
• Flavor violating leptonic decays of the Higgs boson
• Collider probe of heavy additional Higgs bosons solving the muon $g-2$ and dark matter problems
• Higgs flavor phenomenology in a supersymmetric left-right model with parity
• Charged lepton flavor violation in light of Muon $g-2$