EPJ

2024 Impact factor 4.8
EPJ C - Particles and Fields
Particles and Fields
Eur. Phys. J. C 7, 1-3
DOI 10.1007/s100529800980

Isospin amplitudes and CP violation in $(B \to K \pi)$decays

J.-M. Gérard - J. Weyers

Institut de Physique Théorique, Université catholique de Louvain, B-1348 Louvain-la Neuve, Belgium

Received: 9 June 1998 / Published online: 8 September 1998

Abstract
We present a simple isospin invariant parametrization for $(B \to K \pi)$ decay amplitudes which consistently includes CP violation and (quasi-elastic) hadronic final state interactions. We find that the observed $(B \to K \pi)$ decays do not lead to a significant bound on the angle $\gamma $ of the unitarity triangle. On the other hand, we claim that a sizeable CP violation asymmetry in $(B^\pm \to K\pi^\pm)$rates is by no means excluded.

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