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.[Figure not available: see fulltext.].

Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., et al. (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) [10.1007/JHEP08(2018)177].

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

Dinardo M. E.;Ghezzi A.;Govoni P.;Massironi A.;Paganoni M.;Ragazzi S.;Tabarelli de Fatis T.;Gerosa R.;Lucchini M. T.;De Guio F.;
2018

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.[Figure not available: see fulltext.].
Articolo in rivista - Articolo scientifico
Hadron-Hadron scattering (experiments); vector-like quarks
English
2018
2018
8
177
open
Sirunyan, A., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., et al. (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) [10.1007/JHEP08(2018)177].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/286502
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