Leptonic Constant from B Meson Radiative Decay

Abstract

We propose a method to determine the leptonic decay constant $f_{B^{\ast }}$ in the infinite heavy quark mass limit from the analysis of the radiative decay mode $B^{-}\to {\ell }^{-}{\bar{\nu }}_{\ell }\gamma$. The method relies on HQET symmetries and on experimental data from $D^{\ast 0}\to D^0\gamma$.

LaTex, 14 pages, 2 uuencoded figures. This version will appear on Physics Letters B

References in corpus (11)

• QCD Predictions for Lepton Spectra in Inclusive Heavy Flavour Decays
• $D^{\ast }D\pi$ and $B^{\ast }B\pi$ couplings in QCD
• Effective Lagrangian for Heavy and Light Mesons: Semileptonic Decays
• The Semileptonic Decays $D\to \pi (\rho )e\nu$ and $B\to \pi (\rho )e\nu$ from QCD Sum Rules
• Radiative Leptonic Decays of Heavy Mesons
• On the coupling of heavy mesons to pions in QCD
• The Decay $B\to \pi \ell \nu$ in Heavy Quark Effective Theory
• B Mesons
• Radiative Heavy Meson Transitions
• $D^{\ast }$ Radiative Decays and Strong Coupling of Heavy Mesons with Soft Pions in a QCD Relativistic Potential Model
• Dependence of the Form Factors of $B\to \pi \ell \nu$ on the Heavy Quark Mass

Cited by in corpus (17)

• Phenomenology of Heavy Meson Chiral Lagrangians
• Radiative leptonic decays of B mesons in QCD
• Factorization in leptonic radiative B -> gamma eνdecays
• Extraction of the D^*Dπcoupling from D^* decays
• Study of $B_{s,d}\to l^{+}{l}^{-}\gamma$ Decays
• Radiative Leptonic B Decays in the Light Front Model
• Charge Asymmetry and Photon Energy Spectrum in the Decay $B_s\to l^{+}{l}^{-}\gamma$
• Rare (B -> l^+ l^- gamma) decay and new physics effects
• B meson wave function from the $B\to \gamma l\nu$ decay
• On the Decay Mode $B^{-}\to {\mu }^{-}{\bar{\nu }}_{\mu }\gamma$
• Transverse Momentum Dependent Factorization for Radiative Leptonic Decay of B-Meson
• A General analysis of the lepton polarizations in Bs ->γ\ell^+ \ell^- decays
• Radiative leptonic decays of heavy mesons in heavy quark limit
• Radiative leptonic B decays in the instantaneous Bethe-Salpeter approach
• Form factors and branching ratio for the B -> l nu gamma decay
• Weak Radiative B Decays
• $\tau$ polarization asymmetries in $B^{+}\to {\tau }^{+}{\nu }_{\tau }\gamma$ and $B_c^{+}\to {\tau }^{+}{\nu }_{\tau }\gamma$