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| Verfasst von: | Aad, Georges [VerfasserIn]  |
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| | Anders, Christoph [VerfasserIn] |
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| | Andrei, George Victor [VerfasserIn] |
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| | Baas, Alessandra Edda [VerfasserIn] |
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| | Brandt, Oleg [VerfasserIn] |
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| | Davygora, Yuriy [VerfasserIn] |
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| | Djuvsland, Julia Isabell [VerfasserIn] |
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| | Dunford, Monica [VerfasserIn] |
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| | Geisler, Manuel Patrice [VerfasserIn] |
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| | Giulini, Maddalena [VerfasserIn] |
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| | Hanke, Paul [VerfasserIn] |
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| | Jongmanns, Jan [VerfasserIn] |
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| | Kluge, Eike-Erik [VerfasserIn] |
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| | Kolb, Mathis [VerfasserIn] |
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| | Kretz, Moritz [VerfasserIn] |
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| | Kugel, Andreas [VerfasserIn] |
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| | Lang, Valerie [VerfasserIn] |
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| | Lisovyi, Mykhailo [VerfasserIn] |
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| | Meier, Karlheinz [VerfasserIn] |
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| | Meyer zu Theenhausen, Hanno [VerfasserIn] |
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| | Narrias Villar, Daniel Isaac [VerfasserIn] |
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| | S̜ahinsoy, Merve [VerfasserIn] |
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| | Schätzel, Sebastian [VerfasserIn] |
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| | Scharf, Veit [VerfasserIn] |
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| | Schmitt, Sebastian [VerfasserIn] |
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| | Schöning, André [VerfasserIn] |
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| | Schultz-Coulon, Hans-Christian [VerfasserIn] |
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| | Sosa Corral, David E. [VerfasserIn] |
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| | Stamen, Rainer [VerfasserIn] |
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| | Starovoitov, Pavel [VerfasserIn] |
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| | Suchek, Stanislav [VerfasserIn] |
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| | Wessels, Martin [VerfasserIn] |
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| Titel: | Measurement of the production cross-section of a single top quark in association with a W boson at 8 TeV with the ATLAS experiment |
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| Körperschaft: | ATLAS Collaboration [VerfasserIn] |
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| Verf.angabe: | The ATLAS Collaboration* |
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| E-Jahr: | 2016 |
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| Jahr: | 11 January 2016 |
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| Umfang: | 48 S. |
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| Fussnoten: | *The ATLAS Collaboration: G. Aad, C.F. Anders, V. Andrei, A.E. Baas, O. Brandt, Y. Davygora, J.I. Djuvsland, M. Dunford, 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, M. Sahinsoy, S. Schaetzel, V. Scharf, S. Schmitt, A. Schoening, H.-C. Schultz-Coulon, D. Sosa, R. Stamen, P. Starovoitov, S. Suchek, M. Wessels [und sehr viele weitere Personen] ; Gesehen am 29.06.2020 |
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| Titel Quelle: | Enthalten in: Journal of high energy physics |
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| Ort Quelle: | Berlin : Springer, 1997 |
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| Jahr Quelle: | 2016 |
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| Band/Heft Quelle: | (2016,1) Artikel-Nummer 64, 48 Seiten |
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| ISSN Quelle: | 1029-8479 |
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| Abstract: | The cross-section for the production of a single top quark in association with a W boson in proton-proton collisions at s=8TeV$$ \sqrt{s}=8\mathrm{T}\mathrm{e}\mathrm{V} $$is measured. The dataset corresponds to an integrated luminosity of 20.3 fb−1, collected by the ATLAS detector in 2012 at the Large Hadron Collider at CERN. Events containing two leptons and one central b-jet are selected. The W t signal is separated from the backgrounds using boosted decision trees, each of which combines a number of discriminating variables into one classifier. Production of W t events is observed with a significance of 7.7σ. The cross-section is extracted in a profile likelihood fit to the classifier output distributions. The W t cross-section, inclusive of decay modes, is measured to be 23.0 ± 1.3(stat.)− 3.5+ 3.2(syst.)±1.1(lumi.) pb. The measured cross-section is used to extract a value for the CKM matrix element |Vtb| of 1.01 ± 0.10 and a lower limit of 0.80 at the 95% confidence level. The cross-section for the production of a top quark and a W boson is also measured in a fiducial acceptance requiring two leptons with pT > 25 GeV and |η| < 2.5, one jet with pT > 20 GeV and |η| < 2.5, and ETmiss > 20 GeV, including both W t and top-quark pair events as signal. The measured value of the fiducial cross-section is 0.85 ± 0.01(stat.)− 0.07+ 0.07(syst.)±0.03(lumi.) pb. |
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| DOI: | doi:10.1007/JHEP01(2016)064 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1007/JHEP01(2016)064 |
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| | DOI: https://doi.org/10.1007/JHEP01(2016)064 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1702856291 |
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| Verknüpfungen: | → Zeitschrift |
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Measurement of the production cross-section of a single top quark in association with a W boson at 8 TeV with the ATLAS experiment / Aad, Georges [VerfasserIn]; 11 January 2016 (Online-Ressource)
