M ay 2 00 5 hep-ph / 0505136 YITP-05-21 FB asymmetries in the B → K ∗ l + l − decay : A model independent approach


Among the various “rare” semi-leptonic decays of B-mesons the B → Kll mode is of special interest. This is because it has the highest branching ratio among all the semi-leptonic B decays within the SM. This channel also provides us with a very large number of possible observables, such as the Forward Backward (FB) asymmetry, lepton polarization asymmetry… (More)

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