On the double penguin-like contributions to theB^0 - \bar B^0 mixing |
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Authors: | J O Eeg I Picek |
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Institution: | 1. Department of Physics, University of Oslo, Blindern, Box 1048, N-0316, Oslo 3, Norway 2. Rudjer Bo?kovi? Institute, YU-41000, Zagreb, Croatia Yugoslavia
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Abstract: | We investigate double penguin-like diagrams for the \(B^0 - \bar B^0 \) mixing, a missing piece in the literature. We find that the short-distance part of these diagrams contributes ?5% and thus is unimportant in reconciling the value of poorly determined parameters of the standard model and most recent experimental information. We also point out the long-distance hadronic complications which leave the \(B^0 - \bar B^0 \) mixing issue to some extent open. |
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