$h,Z\to {\ell }_i{\bar{\ell }}_j$, $\Delta a_{\mu }$, $\tau \to (3\mu ,\mu \gamma )$ in generic two-Higgs-doublet models

Abstract

Inspired by a significance of $2.4\sigma$ in $h\to \mu \tau$ decay observed by CMS at $\sqrt{s}=8$ TeV, we investigate the Higgs lepton flavor violating effects in the generic two-Higgs-doublet model (GTHDM), where the lepton flavor changing neutral currents are induced at tree level and arisen from Yukawa sector. We revisit the constraints for GTHDM by considering theoretical requirements, precision measurements of $\delta \rho$ and oblique parameters $S$, $T$, $U$ and Higgs measurements. The bounds from Higgs data now play the major role. With the values of parameters that simultaneously satisfy the Higgs bounds and the excess of Higgs coupling to $\mu$-$\tau$ at CMS, we find that the tree-level $\tau \to 3\mu$ and loop-induced $\tau \to \mu \gamma$ could be consistent with current experimental upper limits; the discrepancy in muon $g-2$ between experiment and standard model prediction could be solved; and an interesting relation between muon $g-2$ and branching ratio (BR) for $\mu \to e\gamma$ is found. The GTHM results that the ratio $BR(h\to e\tau )/BR(h\to \mu \tau )$ should be smaller than $10^{-4}$ in order of magnitude. Additionally, we also study the rare decay $Z\to \mu \tau$ and get $BR(Z\to \mu \tau )<10^{-6}$.

23 pages, 16 figures, published version

References in corpus (17)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• The global electroweak fit at NNLO and prospects for the LHC and ILC
• Updated NNLO QCD predictions for the weak radiative B-meson decays
• 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 $L_{\mu }-L_{\tau }$
• Addressing the LHC flavour anomalies with horizontal gauge symmetries
• A Twisted Custodial Symmetry in the Two-Higgs-Doublet Model
• Imprints of massive inverse seesaw model neutrinos in lepton flavor violating Higgs boson decays
• Higgs $\to \mu \tau$ in Abelian and Non-Abelian Flavor Symmetry Models
• Explaining the CMS Higgs flavor violating decay excess
• Higgs $\to$ $\mu \tau$ as an indication for $S_4$ flavor symmetry
• Model building for flavor changing Higgs couplings
• Analysis of the $h,H,A\to \tau \mu$ decays induced from SUSY loops within the Mass Insertion Approximation
• Leptoquark induced rare decay amplitudes $h\to {\tau }^{\mp }{\mu }^{\pm }$ and $\tau \to \mu \gamma$
• Higgs to mu tau Decay in Supersymmetry without R Parity
• Lepton-Flavored Scalar Dark Matter with Minimal Flavor Violation
• Naturally Large Radiative Lepton Flavor Violating Higgs Decay Mediated by Lepton-flavored Dark Matter

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