B Meson Transitions into Higher Mass Charmed Resonances

Abstract

We use QCD sum rules to estimate the universal form factors describing the semileptonic B decays into excited charmed resonances, such as the $1^{-}$ and $2^{-}$ states $D_1^{\ast }$ and $D_2^{\ast }$ belonging to the $s_{\ell }^P={3/2}^{-}$ heavy quark doublet, and the $2^{-}$ and $3^{-}$ states $D_2^{\ast \prime }$ and $D_3$ belonging to the $s_{\ell }^P={5\text{2}}^{-}$ doublet.

Comments: LaTex, 14 pages, 1 figure