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Search for Pair-Produced Resonances Each Decaying into at Least Four Quarks in Proton-Proton Collisions at √s=13  TeV

CMS Collaboration; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Flechl, M.; Frühwirth, R.; Ghete, V. M.; Hrubec, J.; Jeitler, M.; Krammer, N.; Krätschmer, I.; Liko, D.; Madlener, T.; Mikulec, I.; ... mehr

Abstract:
This Letter presents the results of a search for pair-produced particles of masses above 100 GeV that each decay into at least four quarks. Using data collected by the CMS experiment at the LHC in 2015–2016, corresponding to an integrated luminosity of 38.2 fb−1, reconstructed particles are clustered into two large jets of similar mass, each consistent with four-parton substructure. No statistically significant excess of data over the background prediction is observed in the distribution of average jet mass. Pair-produced squarks with dominant hadronic R-parity-violating decays into four quarks and with masses between 0.10 and 0.72 TeVare excluded at 95% confidence level. Similarly, pair-produced gluinos that decay into five quarks are also excluded with masses between 0.10 and 1.41 TeV at 95% confidence level. These are the first constraints that have been placed on pair-produced particles with masses below 400 GeV that decay into four or five quarks, bridging a significant gap in the coverage of R-parity-violating supersymmetry parameter space.

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Verlagsausgabe §
DOI: 10.5445/IR/1000089503
Veröffentlicht am 15.01.2019
Zugehörige Institution(en) am KIT Forschungszentrum Informatik, Karlsruhe (FZI)
Institut für Kernphysik (IKP)
Institut für Experimentelle Teilchenphysik (ETP)
KIT-Zentrum Elementarteilchen- und Astroteilchenphysik (KCETA)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 0031-9007, 1079-7114
urn:nbn:de:swb:90-895033
KITopen-ID: 1000089503
HGF-Programm 51.03.03 (POF III, LK 01)
Erschienen in Physical review letters
Band 121
Heft 14
Seiten Art. Nr.: 141802
Vorab online veröffentlicht am 05.10.2018
Nachgewiesen in Web of Science
Scopus
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