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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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| | Bartels, Falk [VerfasserIn] |
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| | Bolz, Arthur [VerfasserIn] |
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| | Czurylo, Marta [VerfasserIn] |
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| | Dunford, Monica [VerfasserIn] |
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| | Ferreira de Lima, Danilo Enoque [VerfasserIn] |
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| | Franchino, Silvia [VerfasserIn] |
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| | Helary, Louis [VerfasserIn] |
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| | Jongmanns, Jan [VerfasserIn] |
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| | Klassen, Martin [VerfasserIn] |
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| | Krishnan, Anjali [VerfasserIn] |
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| | Kugel, Andreas [VerfasserIn] |
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| | Meyer zu Theenhausen, Hanno [VerfasserIn] |
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| | Mkrtchyan, Tigran [VerfasserIn] |
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| | Napolitano, Fabrizio [VerfasserIn] |
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| | Ott, Philipp [VerfasserIn] |
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| | S̜ahinsoy, Merve [VerfasserIn] |
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| | Schöning, André [VerfasserIn] |
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| | Schultz-Coulon, Hans-Christian [VerfasserIn] |
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| | Spieker, Thomas [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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| | Vigani, Luigi [VerfasserIn] |
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| | Wang, Jike [VerfasserIn] |
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| | Weber, Sebastian [VerfasserIn] |
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| | Wessels, Martin [VerfasserIn] |
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| | Yue, Xiaoguang [VerfasserIn] |
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| Titel: | Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV |
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| Körperschaft: | ATLAS Collaboration [VerfasserIn] |
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| | CMS Collaboration [VerfasserIn] |
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| Verf.angabe: | the ATLAS and CMS Collaborations |
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| E-Jahr: | 2020 |
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| Jahr: | August 12, 2020 |
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| Umfang: | 66 S. |
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| Fussnoten: | Gesehen am 30.09.2020 ; Im Titel steht "s" unter dem Wurzelzeichen |
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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: | 2020 |
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| Band/Heft Quelle: | (2020,8) Artikel-Nummer 51, 66 Seiten |
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| ISSN Quelle: | 1029-8479 |
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| Abstract: | The combination of measurements of the W boson polarization in top quark decays performed by the ATLAS and CMS collaborations is presented. The measurements are based on proton-proton collision data produced at the LHC at a centre-of-mass energy of 8 TeV, and corresponding to an integrated luminosity of about 20 fb−1 for each experiment. The measurements used events containing one lepton and having different jet multiplicities in the final state. The results are quoted as fractions of W bosons with longitudinal (F0), left-handed (FL), or right-handed (FR) polarizations. The resulting combined measurements of the polarization fractions are F0 = 0.693 ± 0.014 and FL = 0.315 ± 0.011. The fraction FR is calculated from the unitarity constraint to be FR = −0.008 ± 0.007. These results are in agreement with the standard model predictions at next-to-next-to-leading order in perturbative quantum chromodynamics and represent an improvement in precision of 25 (29)% for F0 (FL) with respect to the most precise single measurement. A limit on anomalous right-handed vector (VR), and left- and right-handed tensor (gL, gR) tWb couplings is set while fixing all others to their standard model values. The allowed regions are [−0.11, 0.16] for VR, [−0.08, 0.05] for gL, and [−0.04, 0.02] for gR, at 95% confidence level. Limits on the corresponding Wilson coefficients are also derived. |
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| DOI: | doi:10.1007/JHEP08(2020)051 |
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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/JHEP08(2020)051 |
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| | DOI: https://doi.org/10.1007/JHEP08(2020)051 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1733972234 |
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| Verknüpfungen: | → Zeitschrift |
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Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at √s = 8 TeV / Aad, Georges [VerfasserIn]; August 12, 2020 (Online-Ressource)
