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

Belyaev, A.V.; Boos, E.; Bunichev, V.; Dubinin, M.; Dudko, L.; Klyukhin, V.; Kodolova, O.; Obraztsov, S.; Perfilov, M.; Petrushanko, S.V.; Savrin, V.; Volkov, P.; Vorotnikov, G.A.; Collaboration, C.

Авторы: Belyaev A.V., Boos E., Bunichev V., Dubinin M., Dudko L., Klyukhin V., Kodolova O., Obraztsov S., Perfilov M., Petrushanko S.V., Savrin V., Volkov P., Vorotnikov G.A., Collaboration CMS
Журнал: Physical Review D
Том: 110
Год издания: 2024
Издательство: American Physical Society
Местоположение издательства: United States
Первая страница: 072012
DOI: 10.1103/PhysRevD.110.072012
Аннотация: 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.
Добавил в систему: Клюхин Вячеслав Иванович

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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 TeVстатья Исследовательская статья

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