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Verlagsausgabe
DOI: 10.5445/IR/1000081678
Veröffentlicht am 10.04.2018

Search for supersymmetry in proton-proton collisions at 13 TeV using identified top quarks

CMS Collaboration; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Ambrogi, F.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Escalante Del Valle, A.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Grossmann, J.; Hrubec, J.; Jeitler, M.; König, A.; Krammer, N.; ... mehr

Abstract:
A search for supersymmetry is presented based on proton-proton collision events containing identified hadronically decaying top quarks, no leptons, and an imbalance p
miss
T in transverse momentum. The data were collected with the CMS detector at the CERN LHC at a center-of-mass energy of 13 TeV, and correspond to an integrated luminosity of 35.9  fb−1. Search regions are defined in terms of the multiplicity of bottom quark jet and top quark candidates, the p
miss
T, the scalar sum of jet transverse momenta, and the mT2 mass variable. No statistically significant excess of events is observed relative to the expectation from the standard model. Lower limits on the masses of supersymmetric particles are determined at 95% confidence level in the context of simplified models with top quark production. For a model with direct top squark pair production followed by the decay of each top squark to a top quark and a neutralino, top squark masses up to 1020 GeV and neutralino masses up to 430 GeV are excluded. For a model with pair production of gluinos followed by the decay of each gluino to a top quark-antiquark pair and a neutralino, ... mehr


Zugehörige Institution(en) am KIT Institut für Experimentelle Kernphysik (IEKP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 0556-2821, 1089-4918, 1550-2368, 1550-7998, 2470-0010, 2470-0029
URN: urn:nbn:de:swb:90-816782
KITopen ID: 1000081678
Erschienen in Physical review / D
Band 97
Heft 1
Seiten Article: 012007
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
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