P and T odd nucleon-nucleon interaction in a two higgs doublet model

A two higgs doublet model with tree level natural flavor conservation can lead to P and T odd nucleon-nucleon (NN) interaction through tree level Feynman diagrams. In this article we estimate the magnitudes of the parameters that characterize the strength of the S-PS type of NN interaction. Stringent constraints on the parameters can be derived from the measurement of EDM's of Xe, Cs and Hg atoms in the ground state. We show that the predicted values of the parameters lie close to such constraints provided ${\absvt\over \absvo }$ is large.