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

Preprint

21 October 1998

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9809311

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^+ -> 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.

Keywords

RATE MEASUREMENTS
PENGUIN OPERATORS
BRANCHING RATIOS
PHASE GAMMA
WEAK PHASE
PI DECAYS
PI PI
PI K

All Related Versions

Version 1, 1998-09-09, ArXiv
Version 2, 1998-10-21, ArXiv
Published version: Physical Review Letters, 81 (23), 5076.

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