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

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 an Delta F=2 processes are systematically incorporated. Constraints emerging from rare B decays, <Z-->b(b)over bar>, and the rho parameter are also examined. Experimental implications for e(+)e(-)(mu(+)mu(-))--><t(c)over bar>+<(t)over bar c>, t-->c gamma(Z,g), D-0-(D-0) over bar,and B-s(0)-<(B-s(0))over bar> oscillations, and far e(+)e(-)(Z)--><b(s)over bar>+<(b)over bar s> investigated and experimental effort towards these is stressed. We also emphasize the importance of clarifying the experimental issues pertaining to Z--><b(b)over bar>.