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I consider contributions to the neutron electric dipole moment within TwoHiggs Doublet Models which allow for small flavor changing neutral Higgscouplings. In a previous paper, I considered flavor changing interactions forthe Standard Model Higgs boson to first order in the flavor changing coupling.In that paper I found that the obtained value of the neutron electric dipolemoment were below the present experimental limit, given previous restrictionson such couplings. Because this was an effective theory, the result depended onan ultraviolet cut off $\Lambda$, parametrized as $ln(\Lambda^2)$. In thepresent paper I demonstrate that, when going to Two Higgs Doublet Models, theresult stays the same as in the previous paper, up to $M_{SM}^2/M_H^2$corrections, where $M_{SM}$ is the mass of the top-quark or the $W$-boson.$M_H$ is the mass of the heavy neutral scalar Higgs-boson $H$ which is muchheavier than the light neutral Higgs boson $h$ with mass $M_h$. In the limit$M_H^2 \gg M_h^2$, the $ln(\Lambda^2)$ behaviour in the previous paper isreplaced by $ln(\widetilde{M_H}^2)$, where $\widetilde{M_H}$ is of order $M_H$.I also explain how some divergences due to exchange of the pseudoscalar Higgs$A$ are cancelled by similar contributions from the scalar heavy Higgs $H$, andthat these contributions, and finite contributions from $A$-exchange, aresuppressed.

Electric dipole moment of the neutron in Two Higgs Doublet Models with flavor changing