Leptogluons in dilepton production at LHC

TL;DR

This paper investigates how hypothetical leptogluons, predicted by composite models with colored substructure, could influence dilepton production at the LHC, especially through t-channel exchange affecting muon pair production.

Contribution

It introduces the analysis of leptogluon effects in dilepton production at the LHC, highlighting the significance of the t-channel exchange in the TeV mass range.

Findings

T-channel leptogluon exchange can significantly contribute to dimuon production.

Leptogluons can impact dilepton signals at TeV scale invariant masses.

The effect is dominant in the indirect channel at the LHC.

Abstract

In the composite models with colored substructure of the fermions the color singlet leptons are accompanied by a composite color octet partners, which are known as leptogluons. We consider the effect of leptogluons in the dilepton production at the LHC and show that in the reachable parameter range this effect is typically dominated by t-channel leptogluon exchange (indirect channel). We show that this channel alone can give a sizable contribution to the dimuon production at the LHC for TeV scale values of the invariant mass of the muon-antimuon pairs.