Bound-state effects on gluino-pair production at hadron colliders

TL;DR

This paper investigates how bound-state effects influence gluino-pair production at hadron colliders, revealing significant modifications to invariant-mass distributions and total cross-sections, especially near the mass threshold.

Contribution

It provides a detailed analysis of bound-state effects on gluino production in the MSSM, highlighting their impact on collider observables and dependence on gluino decay width.

Findings

Significant deformation of invariant-mass distributions near threshold

Additional correction to total cross-section due to bound states

Dependence of effects on gluino decay width

Abstract

We study bound-state effects on the pair production of gluinos at hadron colliders, in a context of the minimal supersymmetric extension of the standard model. Due to the expected large mass and the octet color-charge of gluinos, the bound-state effects can be substantial at the LHC. We find significant deformation of the invariant-mass distributions of a gluino-pair near the mass threshold, as well as an additional correction to the total cross-section. Both the invariant-mass distribution and the correction to the total cross section depend crucially on the decay width of the gluino.