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

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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 .