Search for resonances in four top quark events in the 2 lepton final state

TL;DR

This paper reports a search for beyond Standard Model resonances in four top quark events with two leptons, using large proton-proton collision datasets, setting limits on various mediators without observing excess signals.

Contribution

It presents the first search for BSM resonances in four top quark production in the two-lepton channel using extensive LHC data, establishing new exclusion limits.

Findings

No significant excess observed in data.

Z' mediators with 50% width excluded up to 850 GeV.

Limits set on scalar, pseudoscalar, and ALP mediators.

Abstract

A first search is presented for BSM resonances in four top quark production in the 2 lepton channel, using $138\mathrm{fb}^{-1}$ $pp$ data collected at $\sqrt{s}=13$ TeV, and $35\mathrm{fb}^{-1}$ $\sqrt{s}=13.6$ TeV $pp$ data. No significant excess is observed; limits are set on vector Z', scalar, pseudoscalar and ALP mediators. Z' mediators with 50% width are excluded up to 850 GeV (1000 GeV expected).