Effect of the Space-like Penguin Diagrams on CP Asymmetries in Exclusive B Decays

Details Effect of the Space-like Penguin Diagrams on CP Asymmetries in Exclusive B Decays Effect of the Space-like Penguin Diagrams on CP Asymmetries in Exclusive B Decays

1995-02-17

arxiv.org/abs/hep-ph/9502337v1

Phys.Lett.B349:215-219,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 Latex pages, 2 figures. (Accepted for publication in Physics Letters B)

Scientific paper

10.1016/0370-2693(95)00221-6

The space-like penguin contributions were ignored on little ground in many previous studies of nonleptonic B decays and CP violation. Taking the penguin-dominated channels $B^{-} _{u}\rightarrow \bar{K}^{0}\pi$ and $B^{-}_{u}\rightarrow K^{0} K^{-}$ for example, we illustrate the non-negligible effects of the space-like penguin diagrams on CP asymmetries. Some quali- tative remarks are given on the gluonic penguin picture and the direct CP violation in exclusive two-body decays of B mesons.

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