Phenomenology of two Higgs doublet models with flavor-changing neutral currents

Abstract

A comprehensive phenomenological analysis of a two Higgs doublet model, with flavor changing scalar currents at the tree level, called model III, is presented. Constraints from existing experimental information especially on (Delta F)=2 processes are systematically incorporated. Constraints emerging from rare B-decays, Z-->b\\bar b, and the \\rho parameter are also examined. Experimental implications for e^+e^- (\\mu^+\\mu^-)-->t\\bar c+\\bar t c, t-->c\\gamma(Z,g), D^0-\\bar D^0, and B^0_s-\\bar B^0_s oscillations, and for e^+e^-(Z)-->b\\bar s+s\\bar b are investigated and experimental effort towards these is stressed. We also emphasize the importance of clarifying the experimental issues pertaining to Z-->b\\bar b.