Weak decays of $B_s$ mesons to $D_s$ mesons in the relativistic quark model

Abstract

The form factors of weak decays of $B_s$ mesons to ground state $D_s^{(\ast )}$ mesons as well as to their radial $D_s^{(\ast )}(2S)$ and orbital $D_{sJ}^{(\ast )}$ excitations are calculated in the framework of the relativistic quark model based on the quasipotential approach. All relativistic effects, including contributions of intermediate negative-energy states and boosts of the meson wave functions, are consistently taken into account. As a result the form factors are determined in the whole kinematical range without additional phenomenological parametrizations and extrapolations. On this basis semileptonic decay branching fractions are calculated. Two-body nonleptonic $B_s$ decays are considered within the factorization approximation. The obtained results agree well with available experimental data.

29 pages, 10 figures, version to be published in Physical Review D

References in corpus (16)

• Mass spectra and Regge trajectories of light mesons in the relativistic quark model
• Relativistic treatment of the decay constants of light and heavy mesons
• The $B(B_s)\to D_{(s)}P$, $D_{(s)}V$, $D_{(s)}^{\ast }P$ and $D_{(s)}^{\ast }V$ decays in the perturbative QCD approach
• Semileptonic decays of heavy baryons in the relativistic quark model
• $B_s\to D_s(3040)$ form factors and $B_s$ decays into $D_s(3040)$
• New analysis of semileptonic B decays in the relativistic quark model
• Measurement of the Decay B_s^0 -> D_s^- pi^+ and Evidence for B_s^0 -> D_s^{+/-} K^{-/+} in e+e- Annihilation at sqrt(s)~10.87 GeV
• Exclusive $B_s$ decays to the charmed mesons $D_s^{+}(1968,2317)$ in the standard model
• Study on $B_s\to D_{sJ}(2317,2460)l\bar{\nu }$ Semileptonic Decays in the CQM Model
• Semileptonic Bs ->DsJ(2460)l nu decay in QCD
• QCD Sum Rules Study of the Semileptonic $B_s(B^{\pm })(B^0)\to D_s[1968](D^0)(D^{\pm })l\nu$ Decays
• Measurement of the B0_s semileptonic branching ratio to an orbitally excited D_s** state, Br(B0_s -> Ds1(2536) mu nu)
• Semileptonic $B_q\to D_q^{\ast }l\nu$ $(q=s,d,u)$ Decays in QCD Sum Rules
• Analysis of exclusive (B_s -> D_{s_0} (2317) l nu_l) decay in "full" QCD
• Exclusive weak B decays involving $\tau$ lepton in the relativistic quark model
• First observation of the decays ${\bar{B}}_{(s)}^0\to D_s^{+}{K}^{-}{\pi }^{+}{\pi }^{-}$ and ${\bar{B}}_s^0\to D_{s1}(2536{)}^{+}{\pi }^{-}$

Cited by in corpus (23)

• Semileptonic decays of $D$ and $D_s$ mesons in the relativistic quark model
• A comprehensive study on the semileptonic decay of heavy flavor mesons
• Semileptonic decays $B/B_s\to (D^{(\ast )},D_s^{(\ast )})l{\nu }_l$ in the PQCD approach with the lattice QCD input
• Relativistic description of the semileptonic decays of bottom mesons
• The $D_s$-meson leading-twist distribution amplitude within the QCD sum rules and its application to the $B_s\to D_s$ transition form factor
• Form factors and branching fraction calculations for $B_s\to D_s^{(\ast )}{\ell }^{+}{\nu }_{\ell }$ in view of LHCb observation
• The Semileptonic $\overline{B}⟶Dl\overline{\nu }$ and $\overline{B_s}⟶D_{s}l\overline{\nu }$ Decays in Isgur-Wise Approach
• New physics footprints in the angular distribution of $B_s\to D_s^{\ast }(\to D_s\gamma ,D_s\pi )\tau \nu$ decays
• The weak $B$, $B_s$ and $B_c$ decays to radially excited states
• The ratio $\mathcal{R}(D_s)$ for $B_s\to D_s\ell {\nu }_{\ell }$ by using the QCD light-cone sum rules within the framework of heavy quark effective field theory
• Prediction of various observables for $B_s^0\to D_s^{(\ast )-}{\ell }^{+}{\nu }_{\ell }$ within covariant confined quark model
• Testing Lepton Flavor Universality at the Electron-Ion Collider
• Probing $D_{s0}^{\ast }(2317)$ in the decays of $B$ to two charmed mesons
• Unexpected pattern of transitions to radial excitations by heavy quark current
• $B_{(s)}\to D_{s0}^{\ast }(2317)P(V)$ decays in perturbative QCD approach
• Exclusive semileptonic decays of $D$ and $D_s$ mesons into orbitally and radially excited states of strange and light mesons
• Inclusive semileptonic $B_s^0$ meson decays at the LHC via a sum-of-exclusive modes technique: possibilities and prospects
• $B_s$ mesons: semileptonic and nonleptonic decays
• Probing $D_s^{\ast }$-meson longitudinal twist-2 LCDA
• $B$ decays to radially excited $D$ mesons in Heavy Quark Effective Theory
• Status of the $D_s^{+}\to \varphi {\ell }^{+}{\nu }_{\ell }$ decay with a chiral-odd $\varphi$-meson light-cone distribution amplitude
• Sensitivity of Two-Body Non-Leptonic Branching Fractions to Theoretical Mass Variations in Heavy-Light Mesons
• A proposal to the '$\frac{1}{2}$ vs. $\frac{3}{2}$ puzzle'