Determination of the Weak Phase gamma from Rate Measurements in B+- -> pi K, pi pi Decays
Abstract
A method is described which, under the assumption of SU(3) symmetry, allows one to determine the angle gamma=Arg(Vub*) of the unitarity triangle from time-independent measurements of the branching ratios for the decays B+ -> pi0 K+ and B- -> pi0 K-, as well as of the CP-averaged branching ratios for the decays B+- -> pi+- K0 and B+- -> pi+- pi0. The effects of electroweak penguin operators are included in a model-independent way, and SU(3)-breaking corrections are accounted for in the factorization approximation.
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