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https://hdl.handle.net/1822/63660
Título: | Observation of Electroweak Production of a Same-Sign W Boson Pair in Association with Two Jets in pp Collisions at s =13 TeV with the ATLAS Detector |
Autor(es): | Onofre, A. Castro, Nuno Filipe ATLAS Collaboration |
Data: | 2019 |
Editora: | American Physical Society |
Revista: | Physical Review Letters |
Citação: | Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abhayasinghe, D. K., . . . Zwalinski, L. (2019). Observation of Electroweak Production of a Same-Sign W Boson Pair in Association with Two Jets in pp Collisions at s =13 TeV with the ATLAS Detector. [Article]. Physical Review Letters, 123(16). doi: 10.1103/PhysRevLett.123.161801 |
Resumo(s): | This Letter presents the observation and measurement of electroweak production of a same-sign W boson pair in association with two jets using 36.1 fb−1 of proton-proton collision data recorded at a center-of-mass energy of √s=13 TeV by the ATLAS detector at the Large Hadron Collider. The analysis is performed in the detector fiducial phase-space region, defined by the presence of two same-sign leptons, electron or muon, and at least two jets with a large invariant mass and rapidity difference. A total of 122 candidate events are observed for a background expectation of 69±7 events, corresponding to an observed signal significance of 6.5 standard deviations. The measured fiducial signal cross section is σfid=2.89+0.51−0.48(stat)+0.29−0.28(syst) fb. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/63660 |
DOI: | 10.1103/PhysRevLett.123.161801 |
ISSN: | 0031-9007 |
e-ISSN: | 1079-7114 |
Versão da editora: | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.123.161801 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | LIP - Artigos/papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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PhysRevLett.123.161801.pdf | 433,34 kB | Adobe PDF | Ver/Abrir |