B -> K^* l^+ l^- decay in the two Higgs doublet model with flavor changing neutral currents

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  • 30 April 1998
Abstract
We calculate the leading logarithmic QCD corrections to the matrix element of the decay b -> s l^+ l^- in the two Higgs doublet model with tree level flavor changing currents (model III). Further, we study the decay width, forward-backward asymmetry and the longitudinal lepton polarization for the exclusive decay B -> K^* l^+ l^- and analyse the dependencies of these quantities on the the selected model III parameters \xi^{U,D}, including the leading logarithmic QCD corrections. It is found that to look for charged Higgs effects, the measurements of the branching ratio, forward-backward asymmetry and the longitudinal lepton polarization for the decay B -> K^* l^+ l^- are promising.

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