General analysis of lepton polarizations in rare B -> K^* l^+ l^- decay beyond the standard model

Details General analysis of lepton polarizations in rare B -> K^* l^+ l^- decay beyond the standard model General analysis of lepton polarizations in rare B -> K^* l^+ l^- decay beyond the standard model

2000-09-11

arxiv.org/abs/hep-ph/0009133v1

Nucl.Phys. B607 (2001) 305-325

Physics

High Energy Physics

High Energy Physics - Phenomenology

29 pp, 15 figures

Scientific paper

10.1016/S0550-3213(01)00180-8

The general analysis of lepton polarization asymmetries in rare B -> K^* l^+ l^- decay is investigated. Using the most general, model independent effective Hamiltonian, the general expressions of the longitudinal, normal and transversal polarization asymmetries for l^- and l^+ and combinations of them are presented. The dependence of lepton polarizations and their combinations on new Wilson coefficients are studied in detail. Our analysis shows that the lepton polarization asymmetries are very sensitive to the scalar and tensor type interactions, which will be very useful in looking for new physics beyond the standard model.

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