DETERMINING THE T(T)OVER-BAR AND ZZ COUPLINGS OF A NEUTRAL HIGGS-BOSON OF ARBITRARY CP NATURE AT THE NEXT LINEAR COLLIDER

The optimal procedure for extracting the coefficients of different com ponents of an observable which takes the form of unknown coefficients times functions of known form is developed. When applied to e(+)e(-)-- ><t(t) over bar>+ Higgs production at root s=1 TeV and integrated lumi nosity times efficiency of 50 fb(-1), we find that the <t(t)over bar>- ->Higgs CP-even and CP-odd couplings and, to a lesser extent, the ZZ-- >Higgs (CP-even) coupling can be extracted with reasonable errors. Typ ically, a standard-model-like CP-even Higgs boson can be distinguished from a purely CP-odd Higgs boson at a high level of statistical signi ficance, and vice versa.