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Title

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

CollaborationWith : Akilli, Ece / Ancu, Lucian Stefan / Benoit, Mathieu / Calace, Noemi / Clark, Allan Geoffrey / Coccaro, Andrea / Della Volpe, Domenico / Di Bello, Francesco / Dubreuil, Arnaud / Ferrere, Didier / Golling, Tobias / Gonzalez Sevilla, Sergio / Iacobucci, Giuseppe / Jansky, Roland / Katre, Akshay / Khoo, Teng Jian / Lanfermann, Marie Christine / Lionti, Anthony Eric / March Ruiz, Luis / Mermod, Philippe / Nackenhorst, Olaf / Nessi, Marzio / Paolozzi, Lorenzo / Schramm, Steven / Sfyrla, Anna / Valente, Marco / Wu, Xin
Published in Journal of High Energy Physics. 2017, vol. 1710, p. 182-243
Collection Open Access - SCOAP3
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 √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.
Keywords Beyond Standard ModelHadron-Hadron scattering (experiments)
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arXiv: 1707.02424
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ATLAS COLLABORATION. Search for new high-mass phenomena in the dilepton final state using 36 fb −1 of proton-proton collision data at √s = 13 TeV with the ATLAS detector. In: Journal of High Energy Physics, 2017, vol. 1710, p. 182-243. https://archive-ouverte.unige.ch/unige:99920

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Deposited on : 2017-12-04

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