Measurement of the production cross section for single top quarks in association with W bosons in proton-proton collisions at sqrt(s) = 13 TeVстатья
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Дата последнего поиска статьи во внешних источниках: 28 сентября 2021 г.
Аннотация:A measurement is presented of the associated production of a single top quark and a W boson in proton-proton collisions at s√= 13 TeV by the CMS Collaboration at the CERN LHC. The data collected corresponds to an integrated luminosity of 35.9 fb−1. The measurement is performed using events with one electron and one muon in the final state along with at least one jet originated from a bottom quark. A multivariate discriminant, exploiting the kinematic properties of the events, is used to separate the signal from the dominant tt¯ background. The measured cross section of 63.1 ± 1.8 (stat) ± 6.4 (syst) ± 2.1 (lumi) pb is in agreement with the standard model expectation.