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Search for vector-like T and B quark pairs in final states with leptons at $ \sqrt{s}=13 $ TeV

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.; Frühwirth, R.; Ghete, V. M.; Hrubec, J.; Jeitler, M.; Krammer, N.; Krätschmer, I.; Liko, D.; Madlener, T.; ... mehr

Abstract:
A search is presented for pair production of heavy vector-like T and B quarks in proton-proton collisions at s √ =13
s=13
TeV. The data sample corresponds to an integrated luminosity of 35.9 fb−1, collected with the CMS detector at the CERN LHC in 2016. Pair production of T quarks would result in a wide range of final states, since vector-like T quarks of charge 2e/3 are predicted to decay to bW, tZ, and tH. Likewise, vector-like B quarks are predicted to decay to tW, bZ, and bH. Three channels are considered, corresponding to final states with a single lepton, two leptons with the same sign of the electric charge, or at least three leptons. The results exclude T quarks with masses below 1140–1300 GeV and B quarks with masses below 910–1240 GeV for various branching fraction combinations, extending the reach of previous CMS searches by 200–600 GeV.

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Verlagsausgabe §
DOI: 10.5445/IR/1000086254
Veröffentlicht am 05.10.2018
Originalveröffentlichung
DOI: 10.1007/JHEP08(2018)177
Scopus
Zitationen: 22
Coverbild
Zugehörige Institution(en) am KIT Institut für Experimentelle Teilchenphysik (ETP)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1029-8479
urn:nbn:de:swb:90-862547
KITopen-ID: 1000086254
Erschienen in Journal of high energy physics
Band 2018
Heft 8
Seiten Article: 177
Bemerkung zur Veröffentlichung Gefördert durch SCOAP3
Vorab online veröffentlicht am 28.08.2018
Schlagworte Hadron-Hadron scattering (experiments); vector-like quarks
Nachgewiesen in Scopus
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