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

G. Aad; T.P.A. Åkesson; E.E. Corrigan; C. Doglioni; P.A. Ekman; J. Geisen; V. Hedberg; G. Jarlskog; B. Konya; E. Lytken; J.U. Mjörnmark; G.A. Mullier; R. Poettgen; N.D. Simpson; E. Skorda; O. Smirnova; L. Zwalinski; ATLAS Collaboration

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

G. Aad, T.P.A. Åkesson, E.E. Corrigan, C. Doglioni, P.A. Ekman, J. Geisen, V. Hedberg, G. Jarlskog, B. Konya, E. Lytken, J.U. Mjörnmark, G.A. Mullier, R. Poettgen, N.D. Simpson, E. Skorda, O. Smirnova, L. Zwalinski, ATLAS Collaboration

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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=8.2−2.9+3.5 pb, consistent with the Standard Model prediction of σSM=10.32−0.36+0.40 pb. [Figure not available: see fulltext.] © 2023, The Author(s).

Original language	English
Article number	191
Journal	Journal of High Energy Physics
Volume	2023
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2023)191
Publication status	Published - 2023

Subject classification (UKÄ)

Subatomic Physics

Free keywords

Hadron-Hadron Scattering
Top Physics

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Aad, G., Åkesson, T. P. A., Corrigan, E. E., Doglioni, C., Ekman, P. A., Geisen, J., Hedberg, V., Jarlskog, G., Konya, B., Lytken, E., Mjörnmark, J. U., Mullier, G. A., Poettgen, R., Simpson, N. D., Skorda, E., Smirnova, O., Zwalinski, L., & ATLAS Collaboration (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), Article 191. https://doi.org/10.1007/JHEP06(2023)191

@article{bc04f120f41542c98a59d629cf443adc,

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=8.2−2.9+3.5 pb, consistent with the Standard Model prediction of σSM=10.32−0.36+0.40 pb. [Figure not available: see fulltext.] {\textcopyright} 2023, The Author(s).",

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

author = "G. Aad and T.P.A. {\AA}kesson and E.E. Corrigan and C. Doglioni and P.A. Ekman and J. Geisen and V. Hedberg and G. Jarlskog and B. Konya and E. Lytken and J.U. Mj{\"o}rnmark and G.A. Mullier and R. Poettgen and N.D. Simpson and E. Skorda and O. Smirnova and L. Zwalinski and {ATLAS Collaboration}",

year = "2023",

doi = "10.1007/JHEP06(2023)191",

language = "English",

volume = "2023",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer",

number = "6",

}

Aad, G, Åkesson, TPA, Corrigan, EE, Doglioni, C, Ekman, PA, Geisen, J, Hedberg, V , Jarlskog, G , Konya, B , Lytken, E, Mjörnmark, JU, Mullier, GA, Poettgen, R, Simpson, ND, Skorda, E, Smirnova, O, Zwalinski, L & ATLAS Collaboration 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. https://doi.org/10.1007/JHEP06(2023)191

TY - JOUR

T1 - Measurement of single top-quark production in the s-channel in proton–proton collisions at √s = 13 TeV with the ATLAS detector

AU - Aad, G.

AU - Åkesson, T.P.A.

AU - Corrigan, E.E.

AU - Doglioni, C.

AU - Ekman, P.A.

AU - Geisen, J.

AU - Hedberg, V.

AU - Jarlskog, G.

AU - Konya, B.

AU - Lytken, E.

AU - Mjörnmark, J.U.

AU - Mullier, G.A.

AU - Poettgen, R.

AU - Simpson, N.D.

AU - Skorda, E.

AU - Smirnova, O.

AU - Zwalinski, L.

AU - ATLAS Collaboration

PY - 2023

Y1 - 2023

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=8.2−2.9+3.5 pb, consistent with the Standard Model prediction of σSM=10.32−0.36+0.40 pb. [Figure not available: see fulltext.] © 2023, The Author(s).

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=8.2−2.9+3.5 pb, consistent with the Standard Model prediction of σSM=10.32−0.36+0.40 pb. [Figure not available: see fulltext.] © 2023, The Author(s).

KW - Hadron-Hadron Scattering

KW - Top Physics

U2 - 10.1007/JHEP06(2023)191

DO - 10.1007/JHEP06(2023)191

M3 - Article

SN - 1029-8479

VL - 2023

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 6

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

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Subject classification (UKÄ)

Free keywords

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