Search for production of a single vectorlike quark decaying to tH or tZ in the all-hadronic final state in pp collisions at √ = 13 TeV
Year: 2024
Type: article
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 pffiffi s ¼ 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.
Authors: Hayrapetyan, A., Clerbaux, Barbara, De Lentdecker, Gilles, Favart, Laurent, Hohov, Dmytro, Jaramillo Gallego, Johny, Khalilzadeh, Ali, Lee, Kyeongpil, Mahdavikhorrami, Mostafa, Malara, Andrea, Paredes Saenz, Santiago, Pétré, Laurent, Postiau, Nicolas, Thomas, Laurent, Vanden Bemden, Max, Vander Velde, Catherine, Vanlaer, Pascal
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7043230551
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