====== TTP93-22 Higgs Effects in Top Production ====== Toponium and open top production are strongly enhanced by the exchange of a light Higgs boson. This enhancement exhibits a rapid energy variation. It is shown that the leading energy dependent term can be absorbed in an instantaneous Yukawa potential. The remainder can again be evaluated in the static limit. |**M. Je\.zabek and J. H. Kuehn** | |** Phys. Lett. B316 360--364 1993 ** | | {{preprints:1993:ttp93-22.pdf|PDF}} {{preprints:1993:ttp93-22.ps|PostScript}} | | |