Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/57498
Título: | Measurement of the cross-section for producing a W boson in association with a single top quark in pp collisions at √s=13 TeV with ATLAS |
Autor(es): | Onofre, A. Castro, Nuno Filipe ATLAS Collaboration |
Palavras-chave: | Hadron-Hadron scattering (experiments) |
Data: | 2018 |
Editora: | Springer Verlag |
Revista: | Journal of High Energy Physics |
Citação: | Aaboud, M., Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., . . . Zwalinski, L. (2018). Measurement of the cross-section for producing a W boson in association with a single top quark in pp collisions at √s=13 TeV with ATLAS. [Article]. Journal of High Energy Physics, 2018(1). doi: 10.1007/jhep01(2018)063 |
Resumo(s): | The inclusive cross-section for the associated production of a W boson and top quark is measured using data from proton-proton collisions at s√=13 TeV. The dataset corresponds to an integrated luminosity of 3.2 fb−1, and was collected in 2015 by the ATLAS detector at the Large Hadron Collider at CERN. Events are selected requiring two opposite sign isolated leptons and at least one jet; they are separated into signal and control regions based on their jet multiplicity and the number of jets that are identified as containing b hadrons. The W t signal is then separated from the tt¯ background using boosted decision tree discriminants in two regions. The cross-section is extracted by fitting templates to the data distributions, and is measured to be σ W t = 94 ± 10(stat.) − 22 + 28 (syst.) ± 2(lumi.) pb. The measured value is in good agreement with the SM prediction of σtheory = 71.7±1.8 (scale)± 3.4 (PDF) pb [1]. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/57498 |
DOI: | 10.1007/jhep01(2018)063 |
ISSN: | 1126-6708 |
e-ISSN: | 1029-8479 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Aaboud2018_Article_MeasurementOfTheCross-sectionF.pdf | 760,4 kB | Adobe PDF | Ver/Abrir |