Phenomenology of iQuarkonium

TL;DR

This paper explores the phenomenology of hypothetical uncolored iquarks, focusing on their production, bound states, and decay patterns, which could provide insights into new confining gauge interactions beyond the Standard Model.

Contribution

It provides a detailed formulation of iquarkonium production and decay, highlighting how their signatures differ from those of superheavy quarkonium.

Findings

Iquark-antiquark pairs form bound states if the confining scale is between MeV and the iquark mass.

Decay patterns of iquarkonium are distinguishable from fourth-generation quarkonium.

Analysis offers potential experimental signatures for detecting iquarks at colliders.

Abstract

Phenomenology of uncolored iquarks - hypothetical fermions charged under a new confining unbroken non-abelian gauge group as well as the standard electroweak gauge group - is investigated for the iquark mass in the range near and above 100 GeV. If the new confining scale turns out to be higher than MeV but much less than the iquark mass, the iquark-antiiquark pair produced in the collider will promptly relaxed into the ground state of the iquarkonium. Subsequent pair annihilation into standard model particles gives useful information of the iquark dynamics. We formulate in details production and decays of the iquark-antiiquark bound states. Decay patterns of the iquarkonium can be distinguished from the superheavy quarkonium of a sequential fourth generation of quarks with degenerate mass.