A Critical Look at $\gamma$ Determinations from $B\to \pi K$ Decays

Abstract

The determination of the angle $\gamma$ of the unitarity triangle of the CKM matrix is a challenge for the $B$-factories. In this context, $B\to \pi K$ decays received a lot of attention, providing various interesting ways to constrain and determine $\gamma$. These strategies are briefly reviewed, and their virtues and weaknesses are compared with one another.

7 pages, no figures. Invited talk given at the 17th International Workshop on Weak Interactions and Neutrinos (WIN99), Cape Town, South Africa, 24-30 January 1999. To appear in the Proceedings