Search for production of a single vectorlike quark decaying to 𝑡𝐻 or 𝑡𝑍 in the all-hadronic final state in 𝑝𝑝 collisions at √𝑠 =13 TeV
Journal
Physical Review D
Journal Volume
110
Journal Issue
7
Start Page
072012
ISSN
2470-0010
2470-0029
Date Issued
2024-10-21
Author(s)
Abstract
A search for electroweak production of a single vectorlike T quark in association with a bottom (b) quark in the all-hadronic decay channel is presented. This search uses proton-proton collision data at s=13 TeV collected by the CMS experiment at the CERN LHC during 2016–2018, corresponding to an integrated luminosity of 138 fb−1. The T quark is assumed to have charge 2/3 and decay to a top (t) quark and a Higgs (H) or Z boson. Hadronic decays of the t quark and the H or Z boson are reconstructed from the kinematic properties of jets, including those containing b hadrons. No deviation from the standard model prediction is observed in the reconstructed tH and tZ invariant mass distributions. The 95% confidence level upper limits on the product of the production cross section and branching fraction of a T quark produced in association with a b quark and decaying via tH or tZ range from 1260 to 68 fb for T quark masses of 600–1200 GeV. © 2024 CERN, for the CMS Collaboration 2024 CERN
Publisher
American Physical Society (APS)
Type
journal article