Radiative Leptonic Decays of $B_c$ Meson

Abstract

To the leading order, the radiative leptonic decays $B_c\to \gamma \ell \bar{\nu }$ ($\ell =e,\mu$) are studied carefully. In the study, a non-relativistic constituent quark model and the effective Lagrangian for the heavy flavour decays are used. As a result, the branching ratios turn out to be of the orders of $10^{-5}$ for $B_c\to \gamma \mu \bar{\nu }$ or for $B_c\to \gamma e\bar{\nu }$. Based on this study, we point out the decays being accessible experimentally at the future LHC, and the possibility to determine the decay constant $f_{B_c}$ through the radiative decays.

9 pages Latex, including 2 figures

Cited by in corpus (26)

• Revisiting the one leptoquark solution to the $R(D^{(\ast )})$ anomalies and its phenomenological implications
• BCVEGPY: An Event Generator for Hadronic Production of the B_c Meson
• Uncertainties in Estimating Hadronic Production of the Meson B_c and Comparisons between TEVATRON and LHC
• $B_c$ to P-Wave Charmonia Transitions in Covariant Light-Front Approach
• Decays of the Meson $B_c$ to a $P$-Wave Charmonium State ${\chi }_c$ or $h_c$
• Hadronic production of the $P$-wave excited $B_c$-states ($B_{cJ,L=1}^{\ast }$)
• $B_c\to B_{sJ}$ form factors and $B_c$ decays into $B_{sJ}$ in covariant light-front approach
• Radiative Leptonic Decays of D_s^\pm and D^\pm Mesons
• The Pure Leptonic Decays of B_c Meson and Their Radiative Corrections
• Searching for super-WIMPs in leptonic heavy meson decays
• The meson $B_c$ annihilation to leptons and inclusive light hadrons
• Radiative Leptonic $B_c\to \gamma \ell \bar{\nu }$ Decay in Effective Field Theory beyond Leading Order
• Methods for high-precision determinations of radiative-leptonic decay form factors using lattice QCD
• $B_c$ meson spectroscopy motivated by general features of pNRQCD
• Radiative Leptonic B_c Decays in Effective Field Theory
• Effects of hadronic loops on the direct CP violation of $B_c$
• Radiative Leptonic $B_c$ Decays
• The Decay constants of $B_c(nS)$ and $B_c^{\ast }(nS)$
• Transverse $\tau$ polarization in $B_c\to \tau {\bar{\nu }}_{\tau }\gamma$ decay
• Radiative B_c -> tau nu_tau gamma decay
• $B_c$ to $A$ Transition Form Factors and Semileptonic Decays in Self-consistent Covariant Light-front Approach
• $\tau$ polarization asymmetries in $B^{+}\to {\tau }^{+}{\nu }_{\tau }\gamma$ and $B_c^{+}\to {\tau }^{+}{\nu }_{\tau }\gamma$
• Efficient lattice QCD computation of radiative-leptonic-decay form factors at multiple positive and negative photon virtualities
• Systematic analysis of the form factors of $B_c$ to $P$-wave charmonia and corresponding weak decays
• The Radiative Leptonic $B_c\to \tau \overline{{\nu }_{\tau }}\gamma$ Decay in Two Higgs Doublet Model
• Radiative $B_c$ meson decays $B_c\to \gamma u\bar{d}$