FB asymmetries in the $B \to K^* \ell^+ \ell^-$ decay: A model independent approach

Details FB asymmetries in the $B \to K^* \ell^+ \ell^-$ decay: A model independent approach FB asymmetries in the $B \to K^* \ell^+ \ell^-$ decay: A model independent approach

2005-05-16

arxiv.org/abs/hep-ph/0505136v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 10 figures

Scientific paper

Among the various "rare" semi-leptonic decays of $B$-mesons the $B \to K^* \ell^+ \ell^-$ 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 etc. Of special interest is the zero which the FB asymmetry has in this decay mode. In this work we have studied this zero in the most general model independent framework.

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