Measurement of the associated production of a single top quark and a Z boson in pp collisions at, root s=13 TeV
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2018-04-10
Autores
Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Ambrogi, F.
Asilar, E.
Bergauer, T.
Brandstetter, J.
Brondolin, E.
Dragicevic, M.
Ero, J.
Título da Revista
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Título de Volume
Editor
Elsevier B.V.
Resumo
A measurement is presented of the associated production of a single top quark and a Z boson. The study uses data from proton-proton collisions at, root s = 13 TeV recorded by the CMS experiment, corresponding to an integrated luminosity of 35.9 fb(-1). Using final states with three leptons (electrons or muons), the tZq production cross section is measured to be sigma (pp -> tZq -> Wbl(+)l(-)q) = 123(-31)(+33)(stat)(-23)(+29)(syst) fb, where l stands for electrons, muons, or tau leptons, with observed and expected significances of 3.7 and 3.1 standard deviations, respectively. C) 2018 The Author. Published by Elsevier B.V.
Descrição
Palavras-chave
SM, Single top, Cross section, tZq
Como citar
Physics Letters B. Amsterdam: Elsevier Science Bv, v. 779, p. 358-384, 2018.