Semileptonic $B_q\to D_q^{\ast }l\nu$ $(q=s,d,u)$ transitions in QCD

Abstract

The form factors relevant to $B_q\to D_q^{\ast }(J^P=1^{-})\ell \nu$ $(q=s,d,u)$ decays are calculated in the framework of the three point QCD sum rules approach. The heavy quark effective theory prediction of the form factors are obtained. The total decay width and branching ratio for these decays are also evaluated using the $q^2$ dependencies of these form factors.

arXiv comment4 pages, 4 figures and 3 tables. To be published in the proceedings of the 14th International QCD Conference (QCD 08), Montpellier, France, 7-12 July 2008

References in corpus (7)

• Heavy Quark Symmetry
• Understanding the $D_{sJ}^{+}(2317)$ and $D_{sJ}^{+}(2460)$ with Sum Rules in HQET
• Radiative transitions of $D_{sJ}^{\ast }(2317)$ and $D_{sJ}(2460)$
• Exclusive semileptonic B_s decays to excited D_s mesons: Search of D_{sJ}(2317) and D_{sJ}(2460)
• Semileptonic Bs ->DsJ(2460)l nu decay in QCD
• Light Quark Dependence of the Isgur-Wise Function from QCD Sum rules
• Semileptonic $B_q\to D_q^{\ast }l\nu$ $(q=s,d,u)$ Decays in QCD Sum Rules

Cited by in corpus (2)

• Implication of $b\to c\tau \nu$ flavor anomalies on $B_s\to D_s^{\ast }\tau \nu$ decay observables
• New physics footprints in the angular distribution of $B_s\to D_s^{\ast }(\to D_s\gamma ,D_s\pi )\tau \nu$ decays