Effect of H^\pm on B^\pm\to τ^\pmν_τand D^\pm_s\to μ^\pmν_μ,τ^\pmν_τ

Abstract

The recent observation of the purely leptonic decay B^\pm\to τ^\pmν_τat the B factories permits a sizeable contribution from a charged Higgs boson (H^\pm). Such a H^\pm would also contribute to the decays D^\pm_s\to μ^\pmν_μand D^\pm_s\to τ^\pmν_τ, which are being measured with increasing precision at CLEO-c. We show that the branching ratios of D^\pm_s\to μ^\pmν_μand D^\pm_s\to τ^\pmν_τcould be suppressed by up to 10% from the Standard Model prediction, which is larger than the anticipated precision in the measurements of these decays at forthcoming BES-III.

arXiv comment9 pages, 4 figures, reference added, minor alterations, version to appear in Phys.Rev.D

References in corpus (25)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• Minimal Flavour Violation: an effective field theory approach
• The Top Quark Mass in Supersymmetric SO(10) Unification
• $\Delta M_{d,s}$, $B_{d,s}^0\to {\mu }^{+}{\mu }^{-}$ and $B\to X_s\gamma$ in Supersymmetry at Large $\tan \beta$
• Hints of large tan(beta) in flavour physics
• Evidence of the Purely Leptonic Decay B- --> tau- nu_tau-bar
• The B Meson Decay Constant from Unquenched Lattice QCD
• Soft Yukawa couplings in supersymmetric theories
• Charmed meson decay constants in three-flavor lattice QCD
• Higgs-mediated FCNC in Supersymmetic Models with Large $\tan \beta$
• Improved Measurement of cal{B}(D^+ --> mu^+ nu) and the Pseudoscalar Decay Constant f_{D^+}
• Charged Higgs Effects on Exclusive Semi-tauonic $\bbox{B}$ Decays
• Search for charged Higgs bosons from top quark decays in \ppbar collisions at $\sqrt{s}=1.96$ TeV
• $D^0-\overline{D^0}$ Mixing and Rare Charm Decays
• The effect of H^\pm on B^\pm -> τ^\pm νand B^\pm -> μ^\pm ν
• Heavy quark physics from lattice QCD
• Charged Higgs on $B^{-}\to \tau {\bar{\nu }}_{\tau }$ and $\bar{B}\to P(V)\ell {\bar{\nu }}_{\ell }$
• Improving constraints on tan(beta)/m_H using B \to D tau \bar{nu}
• Partial Yukawa unification and a supersymmetric origin of flavor mixing
• Tauonic B decays in the Minimal Supersymmetric Standard Model
• Direct Measurement of the Pseudoscalar Decay Constant fD+
• Effect of H^\pm on D^\pm_s\to μ^\pmνand D^\pm_s\to τ^\pmν
• An Investigation of D+--> tau+ nu
• Charm Physics with BES-III at BEPC-II

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• Twenty-first Century Lattice Gauge Theory: Results from the QCD Lagrangian
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• Improved Measurement of Absolute Branching Fraction of Ds to tau nu
• Left-right mixing on leptonic and semileptonic $b\to u$ decays
• Constraints on charged Higgs bosons from D(s)+- -> mu+- nu and D(s)+- -> tau+- nu
• A Search for B+ -> tau+ nu
• Measurement of the Absolute Branching Fractions for $D_s^{-}\to {\ell }^{-}{\bar{\nu }}_{\ell }$ and Extraction of the Decay Constant $f_{D_s}$
• Interpretation of the "$f_{D_s}$ puzzle" in SM and beyond
• Neutral Higgs-pair production at Linear Colliders within the general 2HDM: quantum effects and triple Higgs boson self-interactions
• Observation of the leptonic decay $D^{+}\to {\tau }^{+}{\nu }_{\tau }$
• Measurement of the Absolute Branching Fraction of D_s^+ --> tau^+ nu_tau Decay
• Measurement of the $D_s^{+}\to {\ell }^{+}{\nu }_{\ell }$ branching fractions and the decay constant $f_{D_s^{+}}$
• Measurement of B(D_S^+ --> ell^+ nu) and the Decay Constant f_D_{S^+}
• Neutral Higgs boson pair production in photon-photon annihilation in the Two Higgs Doublet Model
• Leptoquark on $P\to {\ell }^{+}\nu$, FCNC and LFV
• R-parity violating supersymmetry, B_s mixing, and D_s -> l nu
• Phenomenological discriminations of the Yukawa interactions in two-Higgs doublet models with $Z_2$ symmetry
• 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
• 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
• Observation of CP violation in $D^0\to K^{-}{\pi }^{+}$ as a smoking gun for New Physics
• Effect of the Charged Higgs Bosons in the Radiative Leptonic Decays of $B^{-}$ and $D^{-}$ Mesons
• Measuring B -> tau nu and B_c -> tau nu at the Z peak
• Two-Higgs-Doublet Type-II Seesaw Model
• Probing the R-parity violating supersymmetric effects in the exclusive $c\to d/s\ell {\nu }_{\ell }$ decays
• Leptonic decays of D_s and B^+ mesons in supersymmetric standard model with R-parity violating interactions
• A possible signature of new physics at BES-III