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A search for pair-produced resonances in four-jet final states 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 Armando / 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 / Paolozzi, Lorenzo / Schramm, Steven / Sfyrla, Anna / Wu, Xin
Published in The European Physical Journal. C, Particles and Fields. 2018, vol. 78, no. 3, 250
Collection Open Access - SCOAP3
Abstract A search for massive coloured resonances which are pair-produced and decay into two jets is presented. The analysis uses 36.7 fb -1 of s = 13 TeV pp collision data recorded by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the background prediction is observed. Results are interpreted in a SUSY simplified model where the lightest supersymmetric particle is the top squark, t~ , which decays promptly into two quarks through R -parity-violating couplings. Top squarks with masses in the range 100GeV<mt~<410 GeV are excluded at 95% confidence level. If the decay is into a b -quark and a light quark, a dedicated selection requiring two b -tags is used to exclude masses in the ranges 100GeV<mt~<470 GeV and 480GeV<mt~<610 GeV . Additional limits are set on the pair-production of massive colour-octet resonances.
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ATLAS COLLABORATION. A search for pair-produced resonances in four-jet final states at √s = 13 TeV with the ATLAS detector. In: The European Physical Journal. C, Particles and Fields, 2018, vol. 78, n° 3, p. 250. doi: 10.1140/epjc/s10052-018-5693-4 https://archive-ouverte.unige.ch/unige:103321

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Deposited on : 2018-04-05

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