New charged Higgs effects on ${\Gamma }_{K_{e2}}/{\Gamma }_{K_{\mu 2}}$, $f_{D_s}$ and $\mathcal{B}(B^{+}\to {\tau }^{+}\nu )$ in the Two-Higgs-Doublet model

Abstract

A new scheme for Yukawa matrices is proposed for free of flavor changing neutral currents (FCNCs) at tree level in general two-Higgs-doublet model (THDM) without imposing symmetry. We find that the new type couplings of charged Higgs to fermions not only depend on the flavors, but also can be ascribed by new CP violating phases. Unlike conventional THDM, the resulted new charged Higgs effects could have the specialties: (a) the influence on $\Gamma (K_{e2}^{\pm })/\Gamma (K_{\mu 2}^{\pm })$ cannot be eliminated, (b) the decay constant of $D_s$ could be enhanced, and (c) enhancement of branching ratio for $B^{+}\to {\tau }^{+}\nu$ could be achieved.

13 pages, 5 figures, references added, typos corrected, constraints from R_πand B\to D τ\bar νincluded, final version to appear in PLB

References in corpus (16)

• High Precision determination of the pi, K, D and D_s decay constants from lattice QCD
• Hints of large tan(beta) in flavour physics
• Flavor constraints on two-Higgs-doublet models with general diagonal Yukawa couplings
• Neutral B Meson Mixing in Unquenched Lattice QCD
• The Standard Model prediction for R_{e/mu}^{(pi,K)}
• Accumulating evidence for nonstandard leptonic decays of D_s mesons
• Charged Higgs on $B^{-}\to \tau {\bar{\nu }}_{\tau }$ and $\bar{B}\to P(V)\ell {\bar{\nu }}_{\ell }$
• Can scalar leptoquarks explain the f_{D_s} puzzle?
• Precise measurement of B(K\to eν(γ))/B(K\to μν(γ)) and study of K\to eνγ
• Interpretation of the "$f_{D_s}$ puzzle" in SM and beyond
• Lepton flavor violation in $\tau$ decays
• Effect of H^\pm on B^\pm\to τ^\pmν_τand D^\pm_s\to μ^\pmν_μ,τ^\pmν_τ
• |V_{cd}|, |V_{cs}| and f_{D_s} from (semi) leptonic $D_{(s)}$-decays : signals of New Physics ?
• Leptoquark on $P\to {\ell }^{+}\nu$, FCNC and LFV
• R-parity violating supersymmetry, B_s mixing, and D_s -> l nu
• B+ and Ds+ Decay Constants from Belle and Babar

Cited by in corpus (13)

• Charged-Higgs phenomenology in the Aligned two-Higgs-doublet model
• Charged-Higgs on $R_{D^{(\ast )}}$, $\tau$ polarization, and FBA
• Flavour alignment in multi-Higgs-doublet models
• Flavour Conservation in Two Higgs Doublet Models
• 2 TeV Higgs boson and diboson excess at the LHC
• Muon $g-2$ in a two-Higgs-doublet model with a type-II seesaw mechanism
• Charged Higgs boson contribution to $B_q^{-}\to \ell \bar{\nu }$ and $\bar{B}\to (P,V)\ell \bar{\nu }$ in a generic two-Higgs doublet model
• A light charged Higgs boson in two-Higgs doublet model for CDF $Wjj$ anomaly
• Two-Higgs-Doublet Type-II Seesaw Model
• Fermion number conservation and two Higgs doublet models without tree level flavour changing neutral currents
• Leptonic decays of D_s and B^+ mesons in supersymmetric standard model with R-parity violating interactions
• Search for a light-charged Higgs in a two-Higgs-doublet type II seesaw model at the LHC
• Hidden physics in pion and some other meson decays