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Measurement of single top-quark production in association with a W boson in pp collisions at โˆš๐‘  =13 TeV with the ATLAS detector

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The inclusive cross section for the production of a single top quark in association with a ๐‘Š boson is measured using 140 fbโˆ’1 of proton-proton collision data collected with the ATLAS detector at โˆš๐‘  =13 TeV. Events containing two charged leptons and at least one jet identified as originating from a ๐‘...

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Main Authors: Aad, Georges (Author) , Ackermann, Anke (Author) , Baltes, Lisa Marie (Author) , Bartels, Falk (Author) , Rio, Fernando del (Author) , Dittmeier, Sebastian (Author) , Dunford, Monica (Author) , Franchino, Silvia (Author) , Junkermann, Thomas (Author) , Mkrtchyan, Tigran (Author) , Ott, Philipp (Author) , Rassloff, Damir Fabrice (Author) , Sanfilippo, Lorenzo (Author) , Sauer, Christof (Author) , Schoฬˆning, Andreฬ (Author) , Schultz-Coulon, Hans-Christian (Author) , Sothilingam, Varsiha (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Vigani, Luigi (Author) , Weber, Sebastian (Author) , Wessels, Martin (Author) , ZinรŸer, Joachim (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 17 Oktober 2024
In: Physical review
Year: 2024, Volume: 110, Issue: 7, Pages: 1-30
ISSN:2470-0029
DOI:10.1103/PhysRevD.110.072010
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevD.110.072010
Verlag, kostenfrei, Volltext: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.110.072010
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Author Notes:G. Aad et. al. (ATLAS Collaboration)
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Summary:The inclusive cross section for the production of a single top quark in association with a ๐‘Š boson is measured using 140 fbโˆ’1 of proton-proton collision data collected with the ATLAS detector at โˆš๐‘  =13 TeV. Events containing two charged leptons and at least one jet identified as originating from a ๐‘-quark are selected. A multivariate discriminant is constructed to separate the ๐‘กโข๐‘Š signal from the ๐‘กโขยฏ๐‘ก background. The cross section is extracted using a profile likelihood fit to the signal and control regions and it is measured to be ๐œŽ๐‘กโข๐‘Š =7โข5+15โˆ’14 pb, in good agreement with the Standard Model prediction. The measured cross section is used to extract a value for the left-handed form factor at the ๐‘Šโข๐‘กโข๐‘ vertex times the Cabibbo-Kobayashi-Maskawa matrix element |๐‘“LVโก๐‘‰๐‘กโข๐‘| of 0.97 ยฑ0.10.
Item Description:ATLAS Collaboration: G. Aad, A. Ackermann, L.M. Baltes, F. Bartels, F. Del Rio, S.J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, L. Sanfilippo, C. Sauer, A. Schoening, H.-C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, L. Vigani, S. M. Weber, M. Wessels, J. Zinsser [und 2899 weitere]
Im Titel sind "W" und "pp" kursiv geschrieben
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Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.110.072010

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