Exploring the Weak Phase gamma in B^+- -> pi K Decays
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
Measurements of the rates for the hadronic decays B^+- -> pi K along with the CP-averaged B^+- -> pi^+- pi^0 branching ratio can be used to bound and extract the weak phase gamma=-arg(V_ub). Using preliminary CLEO data, we obtain the bounds |gamma|>93 degrees at 1 sigma, and |gamma|>71 degrees at 90 % confidence level.
Cite
@article{arxiv.hep-ph/9904321,
title = {Exploring the Weak Phase gamma in B^+- -> pi K Decays},
author = {Matthias Neubert},
journal= {arXiv preprint arXiv:hep-ph/9904321},
year = {2007}
}
Comments
6 pages, 1 figure, contains new results (!); invited talk at the 17th International Conference on Weak Interactions and Neutrinos, Cape Town, South Africa, 24-30 January 1999