10–14 Jan 2022
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Search for di-jet resonances along with an isolated charged lepton at sqrt(s)=13 TeV pp collision with the ATLAS detector

10 Jan 2022, 16:22
1m
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Online only

Poster Beyond the Standard Model Beyond the Standard Model

Speaker

Wasikul Islam (University of Wisconsin-Madison (US))

Description

A search for dijet resonances in events with identified leptons has been performed using the full Run 2 data collected in pp collisions at sqrt(s)=13 TeV with the ATLAS detector, corresponding to an integrated luminosity of 139 fb^-1. The dijet invariant-mass (mjj) distribution from events with at least one isolated electron or muon was probed in the range of 0.22<mjj<6.3 TeV. The analysis probes much lower mjj than traditional inclusive dijet searches and is sensitive to a large range of new physics models in association with a final-state lepton. As no statistically significant deviation from the Standard Model background hypothesis was found, limits were set on contributions from generic gaussian signals and on various beyond-the-Standard Model (BSM) scenarios including the Sequential Standard Model, a charged Higgs boson model, a simplified Dark Matter model etc. It has also been studied that the multi-body invariant masses such as three- and four-body invariant mass distributions constructed from jets and leptons while following the same analysis strategy provide sensitivity to wide ranges of Physics, including many BSM scenarios.

Primary author

ATLAS Collaboration

Presentation materials

Peer reviewing

Paper