Ultraheavy resonances at the LHC: beyond the QCD background

Understand

We study the theory and some experimental hints of ultraheavy resonances at the LHC.

• The production of an ultraheavy narrow particle may have a larger rate than the QCD background even when the final state includes only hadronic jets.
• We consider two classes of models that lead to 4-jet signals.
• In the first class a diquark scalar decays into two vectorlike quarks.