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Title

Search for new phenomena in photon + jet events collected in proton–proton collisions at √s=8 TeV with the ATLAS detector

CollaborationWith : Alexandre, Gauthier / Barone, Gaetano / Bell, Paul / Bell, William / Benhar Noccioli, Eleonora / Bilbao De Mendizabal, Javier / Bucci, Francesca / Camacho Toro, Reina / Clark, Allan Geoffrey / Doglioni, Caterina / Ferrere, Didier / Gadomski, Szymon / Gonzalez Sevilla, Sergio / Goulette, Marc / Guescini, Francesco / Iacobucci, Giuseppe / Katre, Akshay / La Rosa, Alessandro / Martin Dit Latour, Bertrand / Mermod, Philippe / Mora Herrera, Maria Clemencia Rosario / Muenstermann, Daniel / Nektarijevic, Snezana / Nikolics, Katalin / Pásztor, G. / Picazio, Attilio / Pohl, Martin / Rosbach, Kilian / Vallecorsa, Sofia / Wu, Xin
Published in Physics Letters. B. 2014, vol. 728, p. 562-578
Collection SCOAP3
Abstract This Letter describes a model-independent search for the production of new resonances in photon + jet ( γ+jet ) events using 20 fb −1 of proton–proton LHC data recorded with the ATLAS detector at a centre-of-mass energy of s=8 TeV . The γ+jet mass distribution is compared to a background model fit from data; no significant deviation from the background-only hypothesis is found. Limits are set at 95% credibility level on generic Gaussian-shaped signals and two benchmark phenomena beyond the Standard Model: non-thermal quantum black holes and excited quarks. Non-thermal quantum black holes are excluded below masses of 4.6 TeV and excited quarks are excluded below masses of 3.5 TeV.
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ATLAS COLLABORATION. Search for new phenomena in photon + jet events collected in proton–proton collisions at √s=8 TeV with the ATLAS detector. In: Physics Letters. B, 2014, vol. 728, p. 562-578. https://archive-ouverte.unige.ch/unige:55813

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Deposited on : 2015-04-27

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