High-$p_T$ multi-jet final states at ATLAS and CMS

TL;DR

This paper summarizes recent ATLAS and CMS results on high-$p_T$ multi-jet final states at the LHC, exploring heavy resonances, new phenomena, and leptoquark production to constrain beyond Standard Model physics.

Contribution

It provides an overview of the latest experimental searches and background estimation techniques for high-momentum multi-jet signatures at 13 TeV LHC.

Findings

Constraints on heavy resonances from di-jet mass spectrum

Limits on new phenomena from angular distributions

Results on leptoquark pair production

Abstract

The increase of the centre-of-mass energy of the Large Hadron Collider (LHC) to 13 TeV has opened up a new energy regime. Final states including high-momentum multi-jet signatures often dominate beyond standard model phenomena, in particular decay products of new heavy particles. While the potential di-photon resonance currently receives a lot of attention, multi-jet final states pose strong constraints on what physics model an observation could actually be described with. In this presentation, the latest results of the ATLAS and CMS collaborations in high transverse momentum multi-jet final states are summarised. This includes searches for heavy resonances and new phenomena in the di-jet mass spectrum, di-jet angular distributions, and the sum of transverse momenta in different event topologies. Furthermore, results on leptoquark pair production will be shown. A particular focus is laid on the different background estimation methods.