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Title

Search for long-lived neutral particles decaying into lepton jets in proton-proton collisions at √s = 8 TeV with the ATLAS detector

CollaborationWith : Alexandre, Gauthier / Ancu, Lucian Stefan / Barone, Gaetano / Bell, Paul / Bell, William / Benhar Noccioli, Eleonora / Bilbao De Mendizabal, Javier / Bucci, Francesca / Camacho Toro, Reina / Clark, Allan Geoffrey / Delitzsch, Chris Malena / Della Volpe, Domenico / Doglioni, Caterina / Ferrere, Didier / Gadomski, Szymon / Gonzalez Sevilla, Sergio / Goulette, Marc / Gramling, Johanna Léna / Guescini, Francesco / Iacobucci, Giuseppe / Katre, Akshay / La Rosa, Alessandro / Mermod, Philippe / Miucci, Antonio / Muenstermann, Daniel / Nektarijevic, Snezana / Nessi, Marzio / Nikolics, Katalin / Picazio, Attilio / Pohl, Martin / Rosbach, Kilian / Tykhonov, Andrii / Vallecorsa, Sofia / Wu, Xin
Published in Journal of High Energy Physics. 2014, vol. 1411, p. 088-136
Collection Open Access - SCOAP3
Abstract Several models of physics beyond the Standard Model predict neutral particles that decay into final states consisting of collimated jets of light leptons and hadrons (so-called “lepton jets”). These particles can also be long-lived with decay length comparable to, or even larger than, the LHC detectors' linear dimensions. This paper presents the results of a search for lepton jets in proton-proton collisions at the centre-of-mass energy of √s = 8 TeV in a sample of 20.3 fb −1 collected during 2012 with the ATLAS detector at the LHC. Limits on models predicting Higgs boson decays to neutral long-lived lepton jets are derived as a function of the particle's proper decay length.
Keywords Hadron-Hadron Scattering
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arXiv: 1409.0746
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ATLAS COLLABORATION. Search for long-lived neutral particles decaying into lepton jets in proton-proton collisions at √s = 8 TeV with the ATLAS detector. In: Journal of High Energy Physics, 2014, vol. 1411, p. 088-136. https://archive-ouverte.unige.ch/unige:55755

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Deposited on : 2015-04-27

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