Online-Ressource | |
Verfasst von: | Aad, Georges [VerfasserIn] |
Anders, Christoph [VerfasserIn] | |
Andrei, George Victor [VerfasserIn] | |
Baas, Alessandra Edda [VerfasserIn] | |
Brandt, Oleg [VerfasserIn] | |
Davygora, Yuriy [VerfasserIn] | |
Djuvsland, Julia Isabell [VerfasserIn] | |
Dunford, Monica [VerfasserIn] | |
Geisler, Manuel Patrice [VerfasserIn] | |
Giulini, Maddalena [VerfasserIn] | |
Hanke, Paul [VerfasserIn] | |
Jongmanns, Jan [VerfasserIn] | |
Kluge, Eike-Erik [VerfasserIn] | |
Kolb, Mathis [VerfasserIn] | |
Kretz, Moritz [VerfasserIn] | |
Kugel, Andreas [VerfasserIn] | |
Lang, Valerie [VerfasserIn] | |
Lisovyi, Mykhailo [VerfasserIn] | |
Meier, Karlheinz [VerfasserIn] | |
Meyer zu Theenhausen, Hanno [VerfasserIn] | |
Narrias Villar, Daniel Isaac [VerfasserIn] | |
S̜ahinsoy, Merve [VerfasserIn] | |
Schätzel, Sebastian [VerfasserIn] | |
Scharf, Veit [VerfasserIn] | |
Schmitt, Sebastian [VerfasserIn] | |
Schöning, André [VerfasserIn] | |
Schultz-Coulon, Hans-Christian [VerfasserIn] | |
Sosa Corral, David E. [VerfasserIn] | |
Stamen, Rainer [VerfasserIn] | |
Starovoitov, Pavel [VerfasserIn] | |
Suchek, Stanislav [VerfasserIn] | |
Wessels, Martin [VerfasserIn] | |
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 |
Körperschaft: | ATLAS Collaboration [VerfasserIn] |
Verf.angabe: | The ATLAS Collaboration* |
E-Jahr: | 2016 |
Jahr: | 11 January 2016 |
Umfang: | 48 S. |
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 |
Titel Quelle: | Enthalten in: Journal of high energy physics |
Ort Quelle: | Berlin : Springer, 1997 |
Jahr Quelle: | 2016 |
Band/Heft Quelle: | (2016,1) Artikel-Nummer 64, 48 Seiten |
ISSN Quelle: | 1029-8479 |
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. |
DOI: | doi:10.1007/JHEP01(2016)064 |
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 |
DOI: https://doi.org/10.1007/JHEP01(2016)064 | |
Datenträger: | Online-Ressource |
Sprache: | eng |
K10plus-PPN: | 1702856291 |
Verknüpfungen: | → Zeitschrift |