Semileptonic $B_{q}\to D^{\ast}_{q}lν$ $(q=s, d, u)$ transitions in QCD

Details Semileptonic $B_{q}\to D^{\ast}_{q}lν$ $(q=s, d, u)$ transitions in QCD Semileptonic $B_{q}\to D^{\ast}_{q}lν$ $(q=s, d, u)$ transitions in QCD

2008-09-23

arxiv.org/abs/0809.3866v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 4 figures and 3 tables. To be published in the proceedings of the 14th International QCD Conference (QCD 08), Montpel

Scientific paper

10.1016/j.nuclphysbps.2008.12.08

The form factors relevant to $B_{q}\to D^{\ast}_{q}(J^{P}=1^{-})\ell\nu$
$(q=s, d, u)$ 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.

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