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Search for top quark partners with charge 5/3 in proton-proton collisions at √s=13 TeV

CMS Collaboration; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Asilar, E.; Bergauer, T.; Brandstetter, J.; Brondolin, E.; Dragicevic, M.; Erö, J.; Flechl, M.; Friedl, M.; Frühwirth, R.; Ghete, V. M.; Hartl, C.; Hörmann, N.; Hrubec, J.; Jeitler, M.; König, A.; ... mehr

Abstract:

A search for the production of heavy partners of the top quark with charge 5/3 (X$_{5/3}$) decaying into a top quark and a W boson is performed with a data sample corresponding to an integrated luminosity of 2.3 fb$^{-1}$, collected in proton-proton collisions at a center-of-mass energy of 13 TeV with the CMS detector at the CERN LHC. Final states with either a pair of same-sign leptons or a single lepton, along with jets, are considered. No significant excess is observed in the data above the expected standard model background contribution and an X$_{5/3}$ quark with right-handed (left-handed) couplings is excluded at 95% confidence level for masses below 1020 (990) GeV. These are the first limits based on a combination of the same-sign dilepton and the single-lepton final states, as well as the most stringent limits on the X$_{5/3}$ mass to date.


Volltext §
DOI: 10.5445/IR/1000074078
Originalveröffentlichung
DOI: 10.1007/JHEP08(2017)073
Scopus
Zitationen: 10
Web of Science
Zitationen: 6
Dimensions
Zitationen: 4
Cover der Publikation
Zugehörige Institution(en) am KIT Fakultät für Physik – Institut für Experimentelle Kernphysik (IEKP)
Institut für Prozessdatenverarbeitung und Elektronik (IPE)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2017
Sprache Englisch
Identifikator ISSN: 1029-8479, 1126-6708
urn:nbn:de:swb:90-740785
KITopen-ID: 1000074078
Erschienen in Journal of high energy physics
Verlag Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Band 2017
Heft 8
Seiten Art. Nr.: 073
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Schlagwörter Beyond Standard Model, Exotics, Hadron-Hadron scattering (experiments), Top physics
Nachgewiesen in Scopus
Dimensions
Web of Science
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