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Title

Search for strong production of supersymmetric particles in final states with missing transverse momentum and at least three b -jets at √s = 8 TeV proton-proton collisions 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. 1410, p. 024-77
Collection Open Access - SCOAP3
Abstract This paper reports the results of a search for strong production of supersymmetric particles in 20.1 fb −1 of proton-proton collisions at a centre-of-mass energy of 8 TeV using the ATLAS detector at the LHC. The search is performed separately in events with either zero or at least one high- p T lepton (electron or muon), large missing transverse momentum, high jet multiplicity and at least three jets identified as originated from the fragmentation of a b -quark. No excess is observed with respect to the Standard Model predictions. The results are interpreted in the context of several supersymmetric models involving gluinos and scalar top and bottom quarks, as well as a mSUGRA/CMSSM model. Gluino masses up to 1340 GeV are excluded, depending on the model, significantly extending the previous ATLAS limits.
Keywords Hadron-Hadron Scattering
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arXiv: 1407.0600
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ATLAS COLLABORATION. Search for strong production of supersymmetric particles in final states with missing transverse momentum and at least three b -jets at √s = 8 TeV proton-proton collisions with the ATLAS detector. In: Journal of High Energy Physics, 2014, vol. 1410, p. 024-77. https://archive-ouverte.unige.ch/unige:55770

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Deposited on : 2015-04-27

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