Measurement of single top-quark production in association with a W boson in the single-lepton channel at √s = 8TeV with the ATLAS detector
Entidad
UAM. Departamento de Física TeóricaEditor
SpringerFecha de edición
2021-08-10Cita
10.1140/epjc/s10052-021-09371-7
European Physical Journal C 81.8 (2021): 720
ISSN
1434-6044 (print); 1434-6052 (online)DOI
10.1140/epjc/s10052-021-09371-7Versión del editor
https://doi.org/10.1140/epjc/s10052-021-09371-7Materias
Boson; Partons; Higgs Bosons; FísicaNota
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMDerechos
© CERN for the benefit of the ATLAS collaboration 2021Resumen
The production cross-section of a top quark in association with a W boson is measured using proton–proton collisions at √s = 8TeV. The dataset corresponds to an integrated luminosity of 20.2fb-1, and was collected in 2012 by the ATLAS detector at the Large Hadron Collider at CERN. The analysis is performed in the single-lepton channel. Events are selected by requiring one isolated lepton (electron or muon) and at least three jets. A neural network is trained to separate the tW signal from the dominant tt¯ background. The cross-section is extracted from a binned profile maximum-likelihood fit to a two-dimensional discriminant built from the neural-network output and the invariant mass of the hadronically decaying W boson. The measured cross-section is σtW = 26 ± 7 pb, in good agreement with the Standard Model expectation
Lista de ficheros
Google Scholar:Aad, G.
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ATLAS Collaboration
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Álvarez Estévez, Manuel
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Barreiro Alonso, Fernando
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Calvente López, Sergio
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Camarero Muñoz, Daniel
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Peso Malagón, José del
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Glasman Kuguel, Claudia Beatriz
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Terrón Cuadrado, Juan
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