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 QQ, which induces a strong attractive force between a (super)heavy quark Q and an antiquark Q. An interesting application is the decay of (super)heavy quarkonia QQ into a Higgs boson associated with gauge bosons. The criterion for making the 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 QQ bound states made from the fourth generation quark Q is discussed for p p (at the Tevatron) and pp (at the LHC) collisions.
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