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Search for pair-produced resonances each decaying into at least four quarks in proton-proton collisions at s =13 TeV

Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Search for pair-produced resonances each decaying into at least four quarks in proton-proton collisions at s =13 TeV. Physical Review Letters, 121 (14). pp. 1-18. ISSN 0031-9007 E-ISSN 1079-7114

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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 TeV are 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.

Item Type: Article (Journal)
Additional Information: 7861/70389
Uncontrolled Keywords: Pair-produced resonances; Each decaying; Proton-proton collisions at ffiffi s p = 13 TeV
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Science
Kulliyyah of Science > Department of Physics
Depositing User: Dr Mohd Adli MD Ali
Date Deposited: 31 Jan 2019 09:31
Last Modified: 15 Jul 2019 09:33
URI: http://irep.iium.edu.my/id/eprint/70389

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