Search for Vector-Like T and B Quark Pairs in Final States With Leptons at ?s=13 Tev
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Karapınar, Güler
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Abstract
A search is presented for pair production of heavy vector-like T and B quarks in proton-proton collisions at 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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Keywords
Vector-like quarks, Leptons, Hadron-Hadron scattering, Hadron-Hadron scattering (experiments); vector-like quarks; Nuclear and High Energy Physics, Standard Model, ENERGIES, 13000 GeV-cms, vector-like quark, lepton: multiplicity, quark: vector particle, Physics, Particles & Fields, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Hadron-Hadron scattering (experiments); vector-like quarks, final state: ((n)jet 3lepton), Hadron-Hadron scattering (experiments), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], quark: postulated particle, HADRON COLLIDERS, info:eu-repo/classification/ddc/530, High energy physics ; Experimental particle physics ; LHC ; CMS ; Standard Model, 02 Physical Sciences, CMS, Physics, ddc:530, quark: branching ratio, FERMION, 320, Hadron-Hadron scattering (experiments); vector-like quarks; PP COLLISIONS; HADRON COLLIDERS; CROSS-SECTION; W-BOSON; ENERGIES; FERMION; MODELS; LHC, Nuclear & Particles Physics, channel cross section: branching ratio: upper limit, vector-like quarks, Hadron-Hadron Scattering (Experiments), CERN LHC Coll, Q1 Science (General) / természettudomány általában, Physical Sciences, Physique des particules élémentaires, PARTICLE PHYSICS, quark: charge, LHC, CROSS-SECTION, quark: mass: lower limit, Nuclear and High Energy Physics, p p: scattering, CERN Lab, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Particles & Fields, MODELS, W-BOSON, FOS: Physical sciences, final state: ((n)jet lepton), 530, same sign, Hadron-Hadron scattering (experiments); vector-like quarks;, Hadron-Hadron scattering (experiments), vector-like quarks., High energy physics, Vector-like quarks, ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика, 01 Mathematical Sciences, Q008BPP, Science & Technology, PP COLLISIONS, Vector-Like Quarks, PARTICLE PHYSICS;LARGE HADRON COLLIDER;CMS, hep-ex, charge: electric, final state: ((n)jet dilepton), Leptons, LARGE HADRON COLLIDER, Q009TPP, Hadron-Hadron scattering, quark: pair production, Experimental particle physics, p p: colliding beams, charge: 2/3, experimental results, new particle
Fields of Science
01 natural sciences, 0103 physical sciences
Citation
Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J. ...CMS Collaboration (2018). Search for vector-like T and B quark pairs in final states with leptons at √s=13 TeV. Journal of High Energy Physics, 2018(8). doi:10.1007/JHEP08(2018)177
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2018
Issue
8
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