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Measurement of the polarisation of single top quarks and antiquarks produced in the t-channel at √s = 13 TeV and bounds on the tWb dipole operator from the ATLAS experiment

SYSNO ASEP	0564933
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Measurement of the polarisation of single top quarks and antiquarks produced in the t-channel at √s = 13 TeV and bounds on the tWb dipole operator from the ATLAS experiment
Author(s)	Aad, G. (FR) Abbott, B. (US) Abbott, D.C. (US) Chudoba, Jiří (FZU-D)_{RID, ORCID} Hejbal, Jiří (FZU-D)_{RID, ORCID} Hladík, Ondřej (FZU-D)_ORCID Jačka, Petr (FZU-D)_ORCID Kepka, Oldřich (FZU-D)_{RID, ORCID} Kroll, Jiří (FZU-D)_ORCID Kupčo, Alexander (FZU-D)_{RID, ORCID} Latoňová, Věra (FZU-D)_ORCID Lokajíček, Miloš (FZU-D)_{RID, ORCID} Lysák, Roman (FZU-D)_{RID, ORCID} Marčišovský, Michal (FZU-D)_{RID, ORCID} Mikeštíková, Marcela (FZU-D)_{RID, ORCID} Němeček, Stanislav (FZU-D)_{RID, ORCID} Penc, Ondřej (FZU-D)_ORCID Šícho, Petr (FZU-D)_{RID, ORCID} Staroba, Pavel (FZU-D)_{RID, ORCID} Svatoš, Michal (FZU-D)_{RID, ORCID} Taševský, Marek (FZU-D)_{RID, ORCID}
Article number	040
Source Title	Journal of High Energy Physics. - : Springer - ISSN 1029-8479 Roč. 2022, č. 11 (2022)
Number of pages	62 s.
Language	eng - English
Country	US - United States
Keywords	p p: scattering ; Hadron-Hadron Scattering ; top physics
Subject RIV	BF - Elementary Particles and High Energy Physics
OECD category	Particles and field physics
Research Infrastructure	CERN-CZ II - 90104 - Fyzikální ústav AV ČR, v. v. i. e-INFRA CZ - 90140 - CESNET, zájmové sdružení právnických osob
Method of publishing	Open access
Institutional support	FZU-D - RVO:68378271
UT WOS	000885306200001
EID SCOPUS	85144205100
DOI	10.1007/JHEP11(2022)040
Annotation	A simultaneous measurement of the three components of the top-quark and top-antiquark polarisation vectors in t-channel single-top-quark production is presented. This analysis is based on data from proton–proton collisions at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 139 fb−1−1, collected with the ATLAS detector at the LHC. Selected events contain exactly one isolated electron or muon, large missing transverse momentum and exactly two jets, one being b-tagged. Stringent selection requirements are applied to discriminate t-channel single-top-quark events from the background contributions. The top-quark and top-antiquark polarisation vectors are measured from the distributions of the direction cosines of the charged-lepton momentum in the top-quark rest frame.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2023
Electronic address	https://hdl.handle.net/11104/0336596

Number of the records: 1