2 HIGGS DOUBLET MODELS AND CP VIOLATING HIGGS EXCHANGE IN E(-)-]T(T)OVER-BAR-Z()E()

Appreciable CP asymmetries (similar to 10%) can arise in the reaction E(+)e(-) --> t(t) over barZ$ already at tree-level in models with two Higgs doublets. For a neutral Higgs particle, h, with a mass in the ra nge 50 GeV less than or similar to m(h) less than or similar to 400 Ge V, it may be possible to detect a 2-3 sigma CP-odd effect in e(+) e(-) --> t(t) over barZ$ in similar to 1-2 years of running of a future hi gh energy e(+)e(-) collider with c.m. energies of similar to 1-2 TeV a nd an integrated luminosity of 200-500 inverse fb. (C) 1998 Published by Elsevier Science B.V.