Measurement of single top-quark production in the s-channel in proton–proton collisions at √s = 13 TeV with the ATLAS detector

ATLAS Publications; T.M. Carter; R.Y. Gonzalez Andana; A. Hasib; M.P. Heath; S. Palazzo; V.A. Parrish; E.A. Pender; E.P. Takeva; N. Themistokleous; E.M. Villhauer; E. Zaid

doi:10.1007/JHEP06(2023)191

Measurement of single top-quark production in the s-channel in proton–proton collisions at √s = 13 TeV with the ATLAS detector

ATLAS Publications
, T.M. Carter
, R.Y. Gonzalez Andana
, A. Hasib
, M.P. Heath
, S. Palazzo
, V.A. Parrish
, E.A. Pender
, E.P. Takeva
, N. Themistokleous
, E.M. Villhauer
, E. Zaid

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

A measurement of single top-quark production in the s-channel is performed in
proton–proton collisions at a centre-of-mass energy of 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. The dataset corresponds to an integrated luminosity of 139 fb−1. The analysis is performed on events with an electron or muon, missing transverse momentum and exactly two b-tagged jets in the final state. A discriminant based on matrix element calculations is used to separate single-top-quark s-channel events from the main background contributions, which are top-quark pair production and W -boson production in
association with jets. The observed (expected) signal significance over the background-only hypothesis is 3.3 (3.9) standard deviations, and the measured cross-section is σ = 8.2+3.5−2.9 pb, consistent with the Standard Model prediction of σSM = 10.32+0.40−0.36 pb.

Original language	English
Article number	191
Pages (from-to)	1-46
Number of pages	46
Journal	Journal of High Energy Physics
Volume	2023
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2023)191
Publication status	Published - 27 Jun 2023

Keywords / Materials (for Non-textual outputs)

Hadron-Hadron Scattering
Top Physics

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10.1007/JHEP06(2023)191Licence: Creative Commons: Attribution (CC-BY)

http://arxiv.org/abs/2209.08990

Upgrade of the ATLAS detector at the LHC (2023-26)
Clark, P. (Principal Investigator)
1/04/23 → 31/03/26
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
1/04/23 → 30/09/25
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
1/10/22 → 30/09/25
Project: Research

Cite this

ATLAS Publications, Carter, T. M., Gonzalez Andana, R. Y., Hasib, A., Heath, M. P., Palazzo, S., Parrish, V. A., Pender, E. A., Takeva, E. P., Themistokleous, N., Villhauer, E. M., & Zaid, E. (2023). Measurement of single top-quark production in the s-channel in proton–proton collisions at √s = 13 TeV with the ATLAS detector. Journal of High Energy Physics, 2023(6), 1-46. Article 191. https://doi.org/10.1007/JHEP06(2023)191

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title = "Measurement of single top-quark production in the s-channel in proton–proton collisions at √s = 13 TeV with the ATLAS detector",

abstract = "A measurement of single top-quark production in the s-channel is performed in proton–proton collisions at a centre-of-mass energy of 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. The dataset corresponds to an integrated luminosity of 139 fb−1. The analysis is performed on events with an electron or muon, missing transverse momentum and exactly two b-tagged jets in the final state. A discriminant based on matrix element calculations is used to separate single-top-quark s-channel events from the main background contributions, which are top-quark pair production and W -boson production in association with jets. The observed (expected) signal significance over the background-only hypothesis is 3.3 (3.9) standard deviations, and the measured cross-section is σ = 8.2+3.5−2.9 pb, consistent with the Standard Model prediction of σSM = 10.32+0.40−0.36 pb.",

keywords = "Hadron-Hadron Scattering, Top Physics",

author = "\{ATLAS Publications\} and Clark, \{Philip James\} and Sinead Farrington and Yanyan Gao and Christos Leonidopoulos and Martin, \{Victoria Jane\} and Liza Mijovic and Benjamin Wynne and Sara Alderweireldt and T.M. Carter and \{Gonzalez Andana\}, R.Y. and A. Hasib and M.P. Heath and S. Palazzo and V.A. Parrish and E.A. Pender and E.P. Takeva and N. Themistokleous and E.M. Villhauer and E. Zaid",

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ATLAS Publications, Carter, TM, Gonzalez Andana, RY, Hasib, A, Heath, MP, Palazzo, S, Parrish, VA, Pender, EA, Takeva, EP, Themistokleous, N, Villhauer, EM & Zaid, E 2023, 'Measurement of single top-quark production in the s-channel in proton–proton collisions at √s = 13 TeV with the ATLAS detector', Journal of High Energy Physics, vol. 2023, no. 6, 191, pp. 1-46. https://doi.org/10.1007/JHEP06(2023)191

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AU - ATLAS Publications

AU - Clark, Philip James

AU - Farrington, Sinead

AU - Gao, Yanyan

AU - Leonidopoulos, Christos

AU - Martin, Victoria Jane

AU - Mijovic, Liza

AU - Wynne, Benjamin

AU - Alderweireldt, Sara

AU - Carter, T.M.

AU - Gonzalez Andana, R.Y.

AU - Hasib, A.

AU - Heath, M.P.

AU - Palazzo, S.

AU - Parrish, V.A.

AU - Pender, E.A.

AU - Takeva, E.P.

AU - Themistokleous, N.

AU - Villhauer, E.M.

AU - Zaid, E.

PY - 2023/6/27

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N2 - A measurement of single top-quark production in the s-channel is performed in proton–proton collisions at a centre-of-mass energy of 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. The dataset corresponds to an integrated luminosity of 139 fb−1. The analysis is performed on events with an electron or muon, missing transverse momentum and exactly two b-tagged jets in the final state. A discriminant based on matrix element calculations is used to separate single-top-quark s-channel events from the main background contributions, which are top-quark pair production and W -boson production in association with jets. The observed (expected) signal significance over the background-only hypothesis is 3.3 (3.9) standard deviations, and the measured cross-section is σ = 8.2+3.5−2.9 pb, consistent with the Standard Model prediction of σSM = 10.32+0.40−0.36 pb.

AB - A measurement of single top-quark production in the s-channel is performed in proton–proton collisions at a centre-of-mass energy of 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. The dataset corresponds to an integrated luminosity of 139 fb−1. The analysis is performed on events with an electron or muon, missing transverse momentum and exactly two b-tagged jets in the final state. A discriminant based on matrix element calculations is used to separate single-top-quark s-channel events from the main background contributions, which are top-quark pair production and W -boson production in association with jets. The observed (expected) signal significance over the background-only hypothesis is 3.3 (3.9) standard deviations, and the measured cross-section is σ = 8.2+3.5−2.9 pb, consistent with the Standard Model prediction of σSM = 10.32+0.40−0.36 pb.

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DO - 10.1007/JHEP06(2023)191

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VL - 2023

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JF - Journal of High Energy Physics

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M1 - 191

ER -

Measurement of single top-quark production in the s-channel in proton–proton collisions at √s = 13 TeV with the ATLAS detector

Abstract

Keywords / Materials (for Non-textual outputs)

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Projects

Upgrade of the ATLAS detector at the LHC (2023-26)

Experimental Particle Physics at the University of Edinburgh

Experimental Particle Physics at the University of Edinburgh

Cite this