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Search for same-charge top-quark pair production in pp collisions at s = 13 TeV with the ATLAS detector

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Search for same-charge top-quark pair production in pp collisions at s = 13 TeV with the ATLAS detector. / The ATLAS collaboration.
In: Journal of High Energy Physics, Vol. 2025, No. 2, 84, 12.02.2025.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

The ATLAS collaboration 2025, 'Search for same-charge top-quark pair production in pp collisions at s = 13 TeV with the ATLAS detector', Journal of High Energy Physics, vol. 2025, no. 2, 84. https://doi.org/10.1007/jhep02(2025)084

APA

The ATLAS collaboration (2025). Search for same-charge top-quark pair production in pp collisions at s = 13 TeV with the ATLAS detector. Journal of High Energy Physics, 2025(2), Article 84. https://doi.org/10.1007/jhep02(2025)084

Vancouver

The ATLAS collaboration. Search for same-charge top-quark pair production in pp collisions at s = 13 TeV with the ATLAS detector. Journal of High Energy Physics. 2025 Feb 12;2025(2):84. doi: 10.1007/jhep02(2025)084

Author

The ATLAS collaboration. / Search for same-charge top-quark pair production in pp collisions at s = 13 TeV with the ATLAS detector. In: Journal of High Energy Physics. 2025 ; Vol. 2025, No. 2.

Bibtex

@article{7be199b120f543998289653ba1d2fac3,
title = "Search for same-charge top-quark pair production in pp collisions at s = 13 TeV with the ATLAS detector",
abstract = "A search for the production of top-quark pairs with the same electric charge (tt or tt{\^A}¯) is presented. The analysis uses proton-proton collision data at s = 13 TeV, recorded by the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 140 fb{\^a}ˆ{\textquoteright}1. Events with two same-charge leptons and at least two b-tagged jets are selected. Neural networks are employed to define two selections sensitive to additional couplings beyond the Standard Model that would enhance the production rate of same-sign top-quark pairs. No significant signal is observed, leading to an upper limit on the total production cross-section of same-sign top-quark pairs of 1.6 fb at 95% confidence level. Corresponding limits on the three Wilson coefficients associated with the Otu1, OQu1, and OQu8 operators in the Standard Model Effective Field Theory framework are derived.",
keywords = "Hadron-Hadron Scattering",
author = "{The ATLAS collaboration} and Hanadi Ali and Zainab Alsolami and A.E. Barton and G. Borissov and E.V. Bouhova-Thacker and Ruby Ferguson and James Ferrando and H. Fox and Alina Hagan and R.C.W. Henderson and R.W.L. Jones and V. Kartvelishvili and P.A. Love and E.J. Marshall and Luke McElhinney and L. Meng and D. Muenstermann and Elliot Sampson and M. Smizanska and A.M. Wharton",
year = "2025",
month = feb,
day = "12",
doi = "10.1007/jhep02(2025)084",
language = "English",
volume = "2025",
journal = "Journal of High Energy Physics",
issn = "1029-8479",
publisher = "Springer-Verlag",
number = "2",

}

RIS

TY - JOUR

T1 - Search for same-charge top-quark pair production in pp collisions at s = 13 TeV with the ATLAS detector

AU - The ATLAS collaboration

AU - Ali, Hanadi

AU - Alsolami, Zainab

AU - Barton, A.E.

AU - Borissov, G.

AU - Bouhova-Thacker, E.V.

AU - Ferguson, Ruby

AU - Ferrando, James

AU - Fox, H.

AU - Hagan, Alina

AU - Henderson, R.C.W.

AU - Jones, R.W.L.

AU - Kartvelishvili, V.

AU - Love, P.A.

AU - Marshall, E.J.

AU - McElhinney, Luke

AU - Meng, L.

AU - Muenstermann, D.

AU - Sampson, Elliot

AU - Smizanska, M.

AU - Wharton, A.M.

PY - 2025/2/12

Y1 - 2025/2/12

N2 - A search for the production of top-quark pairs with the same electric charge (tt or tt¯) is presented. The analysis uses proton-proton collision data at s = 13 TeV, recorded by the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 140 fb−1. Events with two same-charge leptons and at least two b-tagged jets are selected. Neural networks are employed to define two selections sensitive to additional couplings beyond the Standard Model that would enhance the production rate of same-sign top-quark pairs. No significant signal is observed, leading to an upper limit on the total production cross-section of same-sign top-quark pairs of 1.6 fb at 95% confidence level. Corresponding limits on the three Wilson coefficients associated with the Otu1, OQu1, and OQu8 operators in the Standard Model Effective Field Theory framework are derived.

AB - A search for the production of top-quark pairs with the same electric charge (tt or tt¯) is presented. The analysis uses proton-proton collision data at s = 13 TeV, recorded by the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 140 fb−1. Events with two same-charge leptons and at least two b-tagged jets are selected. Neural networks are employed to define two selections sensitive to additional couplings beyond the Standard Model that would enhance the production rate of same-sign top-quark pairs. No significant signal is observed, leading to an upper limit on the total production cross-section of same-sign top-quark pairs of 1.6 fb at 95% confidence level. Corresponding limits on the three Wilson coefficients associated with the Otu1, OQu1, and OQu8 operators in the Standard Model Effective Field Theory framework are derived.

KW - Hadron-Hadron Scattering

U2 - 10.1007/jhep02(2025)084

DO - 10.1007/jhep02(2025)084

M3 - Journal article

VL - 2025

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 2

M1 - 84

ER -