Determination of the Weak Phase gamma from Rate Measurements in B^+- -> pi K, pi pi Decays

Details Determination of the Weak Phase gamma from Rate Measurements in B^+- -> pi K, pi pi Decays Determination of the Weak Phase gamma from Rate Measurements in B^+- -> pi K, pi pi Decays

1998-09-09

arxiv.org/abs/hep-ph/9809311v2

Phys.Rev.Lett.81:5076-5079,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

minor revisions, version to be published in Phys. Rev. Letters

Scientific paper

10.1103/PhysRevLett.81.5076

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^+ -> pi^0 K^+ and B^- -> pi^0 K^-, as well as of the CP-averaged branching ratios for the decays B^+- -> pi^+- K^0 and B^+- -> pi^+- pi^0. 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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