We examine the relevance of heavy quark fusion processes for production of both neutral and charged Higgs bosons. Top quark mass-dependence of these mechanisms as well as of gg fusion production of the neutral Higgs is explored. We find that gg fusion is generally larger than tt fusion for the neutral Higgs and even dominates WW/ZZ fusion in the region mH0 ≤ 1 TeV for top masses above mt = 150 GeV. For charged Higgs boson production via tb fusion, the rate may be sufficiently large to permit its detection by making use of the H+ → τ+ ντ decay mode; other distinctive final states, available in supersymmetric models, are also considered. Finally, we show that backgrounds to heavy quark fusion subprocesses can be reduced by tagging on a lepton emitted from the accompanying spectator t-quark.
ASJC Scopus subject areas
- Nuclear and High Energy Physics