Measurement of the tt[bar]Z and tt[bar] W production cross sections in multilepton final states using 3.2 fb−1 of pp collisions at √s = 13 TeV with the ATLAS detector
A measurement of the tt¯Z and tt¯W production cross sections in final states with either two same-charge muons, or three or four leptons (electrons or muons) is presented. The analysis uses a data sample of proton–proton collisions at s√=13 TeV recorded with the ATLAS detector at the Large Hadron Co...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
20 January 2017
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| In: |
The European physical journal. C, Particles and fields
Year: 2017, Jahrgang: 77, Heft: 1 |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-016-4574-y |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1140/epjc/s10052-016-4574-y Verlag: https://link.springer.com/article/10.1140/epjc/s10052-016-4574-y |
| Verfasserangaben: | ATLAS Collaboration* |
| Zusammenfassung: | A measurement of the tt¯Z and tt¯W production cross sections in final states with either two same-charge muons, or three or four leptons (electrons or muons) is presented. The analysis uses a data sample of proton–proton collisions at s√=13 TeV recorded with the ATLAS detector at the Large Hadron Collider in 2015, corresponding to a total integrated luminosity of 3.2 fb−1. The inclusive cross sections are extracted using likelihood fits to signal and control regions, resulting in σtt¯Z=0.9±0.3 pb and σtt¯W=1.5±0.8 pb, in agreement with the Standard Model predictions. |
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| Beschreibung: | Gesehen am 31.01.2020 Im Titel steht der Buchstabe "s" unter dem Wurzelzeichen Im Titel ist "-1" hochgestellt Im Titel steht jeweils der 2. Buchstabe t mit einem Oberstrich *ATLAS Collaboration: M. Aaboud, C.F. Anders, V. Andrei, C. Antel, A.E. Baas, O. Brandt, J.J. Djuvsland, M. Dunford, D.E. Ferreira de Lima, M.P. Geisler, M. Giulini, P. Hanke, J. Jongmanns, E.-E. Kluge, M. Kolb, M. Kretz, A. Kugel, V.S. Lang, M. Lisovyi, K. Meier, H. Meyer zu Theenhausen, D.I. Narrias Villar, V. Radescu, M. Sahinsoy, S. Schaetzel, V. Scharf, A. Schoening, H.-C. Schultz-Coulon, D. Sosa, R. Stamen, P. Starovoitov, S. Suchek, M. Wessels [und 2828 weitere Personen] |
| Beschreibung: | Online Resource |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-016-4574-y |