QCD Sum Rules Study of the Semileptonic $B_s(B^{\pm })(B^0)\to D_s[1968](D^0)(D^{\pm })l\nu$ Decays

Abstract

The form factors of the semileptonic $B_q\to D_q(J^P=0^{-})\ell \nu$ with $q=s,u,d$ transitions are calculated in the framework of three point QCD sum rules. Using the $q^2$ dependencies of the relevant form factors, the total decay width and the branching ratio for these decays are also evaluated. A comparison of our results for the form factors of $B\to D\ell \nu$ with the lattice QCD predictions within heavy quark effective theory and zero recoil limit is presented. Our results of the branching ratio are in good agreement with the constituent quark meson model for ($q=s,u,d$) and experiment for ($q=u,d$). The result of branching ratio for $B_s\to D_s(1968)\ell \nu$ indicates that this transition can also be detected at LHC in the near future.

arXiv comment19 Pages, 4 Figures and 3 Tables

References in corpus (24)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The New Heavy Mesons: A Status Report
• QCD at Low Energies
• Nucleon Form Factors in QCD
• Improved Measurement of cal{B}(D^+ --> mu^+ nu) and the Pseudoscalar Decay Constant f_{D^+}
• Semileptonic D->pi/K and B->pi/D decays in 2+1 flavor lattice QCD
• The Semileptonic Decays $D\to \pi (\rho )e\nu$ and $B\to \pi (\rho )e\nu$ from QCD Sum Rules
• Lattice QCD calculation of $\bar{B}\to Dl\bar{\nu }$ decay form factors at zero recoil
• Radiative transitions of $D_{sJ}^{\ast }(2317)$ and $D_{sJ}(2460)$
• Excited Charmed Mesons: Observations, Analyses and Puzzles
• The Subleading Isgur-Wise Form Factor ${\xi }_3(v\cdot v^{\prime })$ and its Implications for the Decays $\bar{B}\to D^{(\ast )}\ell \bar{\nu }$
• Measurement of the Decay Constant $f_D{}_S^{+}$ using $D_S^+ --> ell^+ nu
• Exclusive semileptonic B_s decays to excited D_s mesons: Search of D_{sJ}(2317) and D_{sJ}(2460)
• 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
• Analysis of rare (B -> K_0*(1430) l^+ l^- decay) within QCD sum rules
• Exclusive B -> K^* l^+ l^- decay with polarized K^* and new physics effects
• Analysis of exclusive (B_s -> D_{s_0} (2317) l nu_l) decay in "full" QCD
• Nucleon Electromagnetic Form Factors in QCD
• Light Cone QCD Sum Rules Analysis of the Axial N -> Delta Transition Form Factors
• QCD sum rules analysis of the rare radiative Bc -> D*_s gamma decay
• Towards a precision computation of f_Bs in quenched QCD

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• Semi-leptonic and Non-leptonic $B$ meson decays to charmed mesons
• Self-consistent light-front quark model analysis of $B\to D\ell {\nu }_{\ell }$ transition form factors
• Semileptonic decays of $B^{(\ast )}$, $D^{(\ast )}$ into $\nu l$ and pseudoscalar or vector mesons
• Semi-inclusive studies of semileptonic $B_s$ decays at Belle
• Relativistic calculations of $R(D^{(\ast )})$, $R(D_s^{(\ast )})$, $R({\eta }_c)$ and $R(J/\psi )$
• 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
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• $B_s$ mesons: semileptonic and nonleptonic decays