Production of (super)heavy quarkonia and new Higgs physics at hadron colliders

Abstract

Based on the two Higgs doublet model, we study the effect of Higgs-boson exchange on the (super)heavy quarkonium \bar QQ, which induces a strong attractive force between a (super)heavy quark Q and an antiquark \bar Q. An interesting application is the decay of (super)heavy quarkonia \bar QQ into a Higgs boson associated with gauge bosons. The criterion for making the \bar QQ bound state is studied. We also show that non-perturbative effects due to gluonic field fluctuations are rather small in such a heavy quark sector. Possible enhancement for productions and decays of \bar QQ bound states made from the fourth generation quark Q is discussed for \bar p p (at the Tevatron) and pp (at the LHC) collisions.

arXiv comment18 pages, REVTeX, 9 figures. V2: minor changes, references and acknowledgments added

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• Resonances, and mechanisms of Theta-production
• Production of Single Heavy Charged Leptons at a Linear Collider
• The flux-tube phase transition and bound states at high temperatures
• Colour-octet bound states, induced by Higgs mechanism
• On leptonic decay of a heavy quarkonium with a Higgs-boson emission