Semileptonic $B_s\to D_{s2}^{\ast }(2573)\ell {\bar{\nu }}_{\ell }$ transition in QCD

Abstract

We analyze the semileptonic $B_s\to D_{s2}^{\ast }(2573)\ell {\bar{\nu }}_{\ell }$ transition, where $\ell =\tau ,\mu$ or $e$, within the standard model. We apply the QCD sum rule approach to calculate the transition form factors entering the low energy Hamiltonian defining this channel. The fit functions of the form factors are used to estimate the total decay widths and branching fractions in all lepton channels. The orders of branching ratios indicate that this transition is accessible at LHCb in near future.

arXiv comment21 Pages, 3 Figures and 5 Tables

References in corpus (23)

• Evidence for an excess of B -> D(*) Tau Nu decays
• On the B to D* tau nu Sensitivity to New Physics
• First evidence for the decay Bs -> mu+ mu-
• Weak form factors for heavy meson decays: an update
• Neutral B Meson Mixing in Unquenched Lattice QCD
• Study of B --> pi l nu and B --> rho l nu Decays and Determination of |V_ub|
• On the anomalous enhancement observed in $B\to D^{(\ast )}\tau {\bar{\nu }}_{\tau }$ decays
• $B_s\to K\ell \nu$ form factors from lattice QCD
• Precise B, B_s and B_c meson spectroscopy from full lattice QCD
• $B_c$ to P-Wave Charmonia Transitions in Covariant Light-Front Approach
• Measurements of branching fractions and $q^2$ distributions for $B\to \pi \ell \nu$ and $B\to \rho \ell \nu$ Decays with $B\to D^{(\ast )}\ell \nu$ Decay Tagging
• $\bar{B}\to D\tau {\bar{\nu }}_{\tau }$ vs. $\bar{B}\to D\mu {\bar{\nu }}_{\mu }$
• B to Light Tensor Meson Form Factors Derived from Light-Cone Sum Rules
• Semileptonic Bs ->DsJ(2460)l nu decay in QCD
• First measurement of the CP-violating phase in $B_s^0\to \varphi \varphi$ decays
• Pion form factor and QCD sum rules: case of axial current
• Strong decay of the heavy tensor mesons with QCD sum rules
• Properties of $D_{s2}^{\ast }(2573)$ charmed-strange tensor meson
• A Measurement of the Semileptonic Branching Fraction of the B_s Meson
• Pion form factor and QCD sum rules: case of pseudoscalar current
• Investigation of the semileptonic transition of the $B$ into the orbitally excited charmed tensor meson
• QCD Sum Rule Analysis of Semileptonic $B_{s1}$, $B_{s2}^{\ast }$, $B_{s0}^{\ast }$, and $B_{s1}^{\prime }$ Decays in HQET
• Semileptonic and nonleptonic decays of $B_s$ mesons