Semileptonic decays of $B_c$ mesons into charmonium states

Abstract

In this work we study the semileptonic decays of $B_c$ meson. We evaluated $B_c\to D(D^{\ast })$, $B_c\to D_s(D_s^{\ast })$ and $B_c\to {\eta }_c(J/\psi )$ transitions form factors in the full kinematical region within the covariant quark model. The calculated form factors are used to evaluate the semileptonic decays of $B_c$ meson and it was defined ratios ($R_{{\eta }_c}$, $R_{J/\psi }$, $R_D$ ,$R_{D^{\ast }}$) of the branching ratios, which will be hopefully tested on LHC experiments.We compare the obtained results with the results from other theoretical approaches.

References in corpus (19)

• Exclusive semileptonic and nonleptonic decays of the Bc meson
• B_c Decays and Lifetime in QCD Sum Rules
• Charmed meson decay constants in three-flavor lattice QCD
• Improved Measurement of cal{B}(D^+ --> mu^+ nu) and the Pseudoscalar Decay Constant f_{D^+}
• Non-perturbatively Improved Heavy-Light Mesons: Masses and Decay Constants
• The semileptonic decays of the B_c meson
• Relativistic constituent quark model with infrared confinement
• Semileptonic decays $B_c\to ({\eta }_c,J/\Psi )l\nu$ in the perturbative QCD approach
• The B_c Meson Lifetime in the Light--Front Constituent Quark Model
• The B_s and D_s decay constants in 3 flavor lattice QCD
• Beauty mesons in lattice QCD with exact chiral symmetry
• Standard Model Matrix Elements for Neutral B-Meson Mixing and Associated Decay Constants
• S-wave ground state charmonium decays of $B_c$ mesons in the perturbative QCD approach
• Decay constants of the charmed vector mesons $D^{\ast }$ and $D_s^{\ast }$ from QCD sum rules
• D-meson decay constants and a check of factorization in non-leptonic B-decays
• Pseudoscalar Decay Constants $f_D$ and $f_{D_s}$ in Lattice QCD with Exact Chiral Symmetry
• Decay Constant Ratios $f_{{\eta }_c}/f_{J/\psi }$ and $f_{{\eta }_b}/f_{{\rm Y}}$
• Decay $B_s\to \varphi {\ell }^{+}{\ell }^{-}$ in covariant quark model
• Study of $B_c^{\ast }$ $\to$ $\psi (1S,2S)P$, ${\eta }_c(1S,2S)P$ weak decays

Cited by in corpus (15)

• Implications of new physics in the decays $B_c\to (J/\psi ,{\eta }_c)\tau \nu$
• The decays $B_c\to J/\psi +\bar{\ell }{\nu }_{\ell }$ and $B_c\to J/\psi +\pi (K)$ in covariant confined quark model
• On lepton flavour universality in semileptonic $B_c\to {\eta }_c,J/\psi$ decays
• Form factors and branching fraction calculations for $B_s\to D_s^{(\ast )}{\ell }^{+}{\nu }_{\ell }$ in view of LHCb observation
• Lepton mass effects in exclusive semileptonic $B_c$-meson decays
• Exclusive semileptonic $B_c$-meson decays to radially excited charmonium and charm meson states
• A Light shed on Lepton Flavor Universality in B decays
• Predictions of $B_c\to (D,D^{\ast })l\nu$ decay observables in the standard model
• Prediction of various observables for $B_s^0\to D_s^{(\ast )-}{\ell }^{+}{\nu }_{\ell }$ within covariant confined quark model
• $B_c^{\ast }$ meson parameters and radiative decay width within the covariant confined quark model
• Assessing Lepton Flavor Universality Violations in Semileptonic Decays
• $B\to \rho$ Decay Form Factors from Covariant Confined Quark Model
• Study of charm and beauty mass spectra, semileptonic decays of $B_{(s,c)}$ and $B_c\to J/\psi ({\eta }_c)+P(V)$ in a phenomenological potential model
• Study of angular observables in exclusive semileptonic $B_c$ decays
• Weak Annihilation Contribution to Angular Observables in $B_c^{+}\to D^{\ast +}{\ell }^{+}{\ell }^{-}$ Decays