Evidence for Electroweak Production of W<sup>±</sup>W<sup>±</sup>jj in pp collisions at √s =8 TeV with the ATLAS Detector
This Letter presents the first study of W<sup>±</sup>W<sup>±</sup>jj, same-electric-charge diboson production in association with two jets, using 20.3 fb-1 of proton-proton collision data at √s=8 TeV recorded by the ATLAS detector at the Large Hadron Collider. Events with two...
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| Autores principales: | , , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2014
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/85126 |
| Aporte de: |
| Sumario: | This Letter presents the first study of W<sup>±</sup>W<sup>±</sup>jj, same-electric-charge diboson production in association with two jets, using 20.3 fb-1 of proton-proton collision data at √s=8 TeV recorded by the ATLAS detector at the Large Hadron Collider. Events with two reconstructed same-charge leptons (e<sup>±</sup>e<sup>±</sup>, e<sup>±</sup>μ<sup>±</sup>, and μ<sup>±</sup>μ<sup>±</sup>) and two or more jets are analyzed. Production cross sections are measured in two fiducial regions, with different sensitivities to the electroweak and strong production mechanisms. First evidence for W<sup>±</sup>W<sup>±</sup>jj production and electroweak-only W<sup>±</sup>W<sup>±</sup>jj production is observed with a significance of 4.5 and 3.6 standard deviations, respectively. The measured production cross sections are in agreement with standard model predictions. Limits at 95% confidence level are set on anomalous quartic gauge couplings. |
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