Model-Independent Analysis of B -> pi K Decays and Bounds on the Weak Phase gamma

Details Model-Independent Analysis of B -> pi K Decays and Bounds on the Weak Phase gamma Model-Independent Analysis of B -> pi K Decays and Bounds on the Weak Phase gamma

1998-12-16

arxiv.org/abs/hep-ph/9812396v1

JHEP 9902:014,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

34 pages, 18 figures, uses JHEP.cls; submitted to JHEP

Scientific paper

10.1088/1126-6708/1999/02/014

A general parametrization of the amplitudes for the rare two-body decays B -> pi K is introduced, which makes maximal use of theoretical constraints arising from flavour symmetries of the strong interactions and the structure of the low-energy effective weak Hamiltonian. With the help of this parametrization, a model-independent analysis of the branching ratios and direct CP asymmetries in the various B -> pi K decay modes is performed, and the impact of hadronic uncertainties on bounds on the weak phase gamma = arg(Vub*) is investigated.

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