Measuring the angle $\gamma$ from penguin decays at LHCb

Abstract

In this paper we present first LHCb results on charmless charged two- and three-body $B$ meson decays. In particular, using the first picobarn of integrated luminosity, LHCb observed the $B^0\to K^{+}{\pi }^{-}$ and $B^{+}\to K^{+}{\pi }^{+}{\pi }^{-}$ decays. Such decays provide an interesting way to determine the angle $\gamma$ of the Unitary Triangle, thanks to the possible presence of New Physics in the penguin loops.

Proceedings of CKM2010, the 6th International Workshop on the CKM Unitarity Triangle, University of Warwick, UK, 6-10 September 2010