Search for vector-like T and B quark pairs in final states with leptons at root s=13 TeV

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The CMS Collaboration , Sirunyan , A M , Eerola , P , Kirschenmann , H , Pekkanen , J , Voutilainen , M , Havukainen , J , Heikkilä , J K , Järvinen , T , Karimäki , V , Kinnunen , R , Lampén , T , Lassila-Perini , K , Laurila , S , Lehti , S , Lindén , T , Luukka , P , Mäenpää , T , Siikonen , H , Tuominen , E , Tuominiemi , J & Tuuva , T 2018 , ' Search for vector-like T and B quark pairs in final states with leptons at root s=13 TeV ' , Journal of High Energy Physics , vol. 2018 , no. 8 , 177 . https://doi.org/10.1007/JHEP08(2018)177

Titel: Search for vector-like T and B quark pairs in final states with leptons at root s=13 TeV
Författare: The CMS collaboration; Sirunyan, A. M.; Eerola, P.; Kirschenmann, H.; Pekkanen, J.; Voutilainen, M.; Havukainen, J.; Heikkilä, J. K.; Järvinen, T.; Karimäki, V.; Kinnunen, R.; Lampén, T.; Lassila-Perini, K.; Laurila, S.; Lehti, S.; Lindén, T.; Luukka, P.; Mäenpää, T.; Siikonen, H.; Tuominen, E.; Tuominiemi, J.; Tuuva, T.
Upphovmannens organisation: Department of Physics
Helsinki Institute of Physics
Datum: 2018-08-28
Språk: eng
Sidantal: 51
Tillhör serie: Journal of High Energy Physics
ISSN: 1029-8479
DOI: https://doi.org/10.1007/JHEP08(2018)177
Permanenta länken (URI): http://hdl.handle.net/10138/246358
Abstrakt: A search is presented for pair production of heavy vector-like T and B quarks in proton-proton collisions at A root 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.
Subject: 114 Physical sciences
Hadron-Hadron scattering (experiments)
vector-like quarks
PP COLLISIONS
HADRON COLLIDERS
CROSS-SECTION
W-BOSON
ENERGIES
FERMION
MODELS
LHC
Referentgranskad: Ja
Licens: cc_by
Användningsbegränsning: openAccess
Parallelpublicerad version: publishedVersion


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