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Title
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Search for pair production of vector-like quarks in the channel from proton-proton collisions at =13TeV
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Author
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Institution/Organisation
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CMS Collaboration
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Abstract
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| A search is presented for the production of vector-like quark pairs, T (T) over bar or Y (Y) over bar, with electric charge of 2/3(T) or -4/3(Y), in proton-proton collisions at root s= 13 TeV. The data were collected by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.8 fb(-1). The T and Y quarks are assumed to decay exclusively to a W boson and a b quark. The search is based on events with a single isolated electron or muon, large missing transverse momentum, and at least four jets with large transverse momenta. In the search, a kinematic reconstruction of the final state observables is performed, which would permit a signal to be detected as a narrow mass peak (approximate to 7% resolution). The observed number of events is consistent with the standard model prediction. Assuming strong pair production of the vector-like quarks and a 100% branching fraction to bW, a lower limit of 1295 GeV at 95% confidence level is set on the T and Y quark masses. (c) 2018 The Author(s). Published by Elsevier B.V. |
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Language
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English
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Source (journal)
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Physics letters : B. - Amsterdam, 1967, currens
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Publication
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Amsterdam
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North-Holland
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2018
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ISSN
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0370-2693
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DOI
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10.1016/J.PHYSLETB.2018.01.077
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Volume/pages
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779
(2018)
, p. 82-106
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ISI
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000429098900011
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Full text (Publisher's DOI)
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