F. Abe et al., SEARCH FOR THE TOP-QUARK DECAYING TO A CHARGED-HIGGS-BOSON IN P(P)OVER-BAR COLLISIONS AT ROOT(S)=1.8TEV, Physical review letters, 72(13), 1994, pp. 1977-1981
We present results of a search for the top quark decaying to a charged
Higgs boson (H+) in ppBAR collisions at square-root s = 1.8 TeV at th
e Fermilab Tevatron. Assuming that H+ --> taunu(tau) is the dominant H
+ decay mode, we exclude regions of the (m(H) +,m(t)) plane for values
of the branching ratio B(H+ --> taunu(tau)) = 0.5, 0.75, and 1.0. We
interpret the results in terms of the parameter tanbeta in the two-Hig
gs-doublet model.