Jan 10 – 14, 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

Jan 10, 2022, 4:22 PM
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Poster Beyond the Standard Model Beyond the Standard Model


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


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.

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