Eur. Phys. J. C (2005) 40: 187-191
https://doi.org/10.1140/epjc/s2005-02142-0

theoretical physics

Extension of the Buchalla-Safir bound

Universidade Técnica de Lisboa and Centro de Física Teórica de Partículas, Instituto Superior Técnico, 1049-001, Lisboa, Portugal

^* e-mail: balio@cftp.ist.utl.pt

Abstract

I provide a simple derivation of the Buchalla-Safir bound on . I generalize it to the case where an upper bound on the phase of the penguin pollution is assumed. I apply the Buchalla-Safir bound, and its generalization, to the most recent data on CP violation in .