B-meson rare decays in two-Higgs-doublet models

Abstract

We study Bl+l-, bsl+l-, and BKl+l- decays in two-Higgs-doublet models. With constraints from BK* for the parameters in the model, we find that the branching ratio for Bl+l- can be two to three orders of magnitude larger than in the standard model, if the Higgs pseudoscalar is very light. The branching ratios for bsl+l- and BKl+l- can be an order of magnitude larger than the standard-model predictions. © 1988 The American Physical Society.