Exploring the Weak Phase gamma in B^+- -> pi K Decays

Details Exploring the Weak Phase gamma in B^+- -> pi K Decays Exploring the Weak Phase gamma in B^+- -> pi K Decays

1999-04-13

arxiv.org/abs/hep-ph/9904321v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 1 figure, contains new results (!); invited talk at the 17th International Conference on Weak Interactions and Neutri

Scientific paper

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.

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