Lepton angular asymmetries in semileptonic charmful B decays

Abstract

We study the lepton angular distributions in $B\to D^{(\ast )}\ell {\nu }_{\ell }$ decays. The lepton angular asymmetries in the decays with the general effective interactions are examined. We demonstrate that the asymmetries are sensitive to new physics with a right-handed quark current.

Comments: 10 pages, 2 tables, 4 figures, version to appear in Phys. Rev. D (BR)