Three recent searches are presented for electroweak production of a vector-like top quark partner T of charge 2e/3 in association with a standard model top or bottom quark, using 2.3 fb^-1 of proton-proton collision data at
sqrt(s) = 13 TeV collected by the CMS experiment at the CERN
LHC. The searches, the first of their kind at this energy, are targeted to three decay modes of the T quark: tH, in a fully hadronic final state; tZ, in a dilepton final state; and bW, in a single lepton final state. All searches make use of algorithms to identify b quark jets and boosted W, H boson and top quark decays. Across a range of T quark masses from 700 – 1800 GeV, these searches place 95% C.L. upper limits on the production cross section times branching fraction of 0.37 –
0.93 pb (T -> tH), 0.11 – 2.0 pb (T -> bW), and 0.16 – 0.97 pb (T -> tZ).
Volume 282 -
38th International Conference on High Energy Physics (ICHEP2016) -
Beyond the Standard Model
Search for the production of vector-like quarks at CMS
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Pre-published on:
February 06, 2017
Published on:
April 19, 2017
Abstract
DOI: https://doi.org/10.22323/1.282.0150
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.