Searches for Higgs pairs

Possible non-minimal Higgs boson searches at SLC on the Z0 peak are surveyed. Especially, the pair production of charged Higgs bosons (e+e- → H+H-) and that of two different neutral Higgs bosons (e+e- → H/sub i/0 H/sub j/0) are studied. The expected event topology varies with the mass spectra of the Higgs bosons. With a relatively small number of events in the early SLC running period (with ≅ 10,000 Z0's), they may have a hint of the evidence of the process e+e- → H+H- → q'anti q + q-anti q' by reconstructing the jet-jet invariant mass peak. The process e+e- → H/sub i/0H/sub j/0 is relatively easy to find if one of the Higgs bosons decays into a muon pair (and probably if it decays into a tau pair) and if the suppression of the cross section due to the Higgs mixing is not too severe. Possible strategies to find these events are discussed, and some of them are demonstrated. Higgs bosons from top quark decay are also briefly discussed. 36 references, 22 figures