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Search for new high-mass phenomena in the dilepton final state using 36 fb$^{−1}$ of proton-proton collision data at $ \sqrt{s}=13 $ TeV with the ATLAS detector

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Original languageEnglish
Article numberAaboud:2017buh
Pages (from-to)182
Journal Journal of High Energy Physics
Volume1710
DOIs
StatePublished - 26 Oct 2017

Abstract

A search is conducted for new resonant and non-resonant high-mass phenomena in dielectron and dimuon final states. The search uses 36.1 fb$^{−1}$ of proton-proton collision data, collected at $ \sqrt{s}=13 $ TeV by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the Standard Model prediction is observed. Upper limits at 95% credibility level are set on the cross-section times branching ratio for resonances decaying into dileptons, which are converted to lower limits on the resonance mass, up to 4.1 TeV for the E$_{6}$-motivated Z$_{χ}^{′}$ . Lower limits on the qqℓℓ contact interaction scale are set between 2.4 TeV and 40 TeV, depending on the model.

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