Theory of $B\to \tau \nu$ and $B\to D^{(\ast )}\tau \nu$

Abstract

We review possible impact of beyond Standard Model physics in the third generation leptonic and semileptonic B decays.

Comments: Proceedings of CKM 2012, the 7th International Workshop on the CKM Unitarity Triangle, University of Cincinnati, USA, 28 September - 2 October 2012