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Evidence for tt¯ tt¯ production in the multilepton final state in proton–proton collisions at √s=13 TeV with the ATLAS detector: European Physical Journal C

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Evidence for tt¯ tt¯ production in the multilepton final state in proton–proton collisions at √s=13 TeV with the ATLAS detector: European Physical Journal C. / Collaboration, ATLAS; Barton, A.E.; Bertram, I.A. et al.
In: Eur. Phys. J. C, Vol. 80, No. 11, 1085, 24.11.2020.

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

Harvard

Collaboration, ATLAS, Barton, AE, Bertram, IA, Borissov, G, Bouhova-Thacker, EV, Fox, H, Henderson, RCW, Jones, RWL, Kartvelishvili, V, Long, RE, Love, PA, Muenstermann, D, Parker, AJ, Sanderswood, I, Smizanska, M, Tee, AS, Walder, J, Wharton, AM, Whitmore, BW & Yexley, M 2020, 'Evidence for tt¯ tt¯ production in the multilepton final state in proton–proton collisions at √s=13 TeV with the ATLAS detector: European Physical Journal C', Eur. Phys. J. C, vol. 80, no. 11, 1085. https://doi.org/10.1140/epjc/s10052-020-08509-3

APA

Collaboration, ATLAS., Barton, A. E., Bertram, I. A., Borissov, G., Bouhova-Thacker, E. V., Fox, H., Henderson, R. C. W., Jones, R. W. L., Kartvelishvili, V., Long, R. E., Love, P. A., Muenstermann, D., Parker, A. J., Sanderswood, I., Smizanska, M., Tee, A. S., Walder, J., Wharton, A. M., Whitmore, B. W., & Yexley, M. (2020). Evidence for tt¯ tt¯ production in the multilepton final state in proton–proton collisions at √s=13 TeV with the ATLAS detector: European Physical Journal C. Eur. Phys. J. C, 80(11), Article 1085. https://doi.org/10.1140/epjc/s10052-020-08509-3

Vancouver

Collaboration ATLAS, Barton AE, Bertram IA, Borissov G, Bouhova-Thacker EV, Fox H et al. Evidence for tt¯ tt¯ production in the multilepton final state in proton–proton collisions at √s=13 TeV with the ATLAS detector: European Physical Journal C. Eur. Phys. J. C. 2020 Nov 24;80(11):1085. doi: 10.1140/epjc/s10052-020-08509-3

Author

Collaboration, ATLAS ; Barton, A.E. ; Bertram, I.A. et al. / Evidence for tt¯ tt¯ production in the multilepton final state in proton–proton collisions at √s=13 TeV with the ATLAS detector : European Physical Journal C. In: Eur. Phys. J. C. 2020 ; Vol. 80, No. 11.

Bibtex

@article{c63320723eff4c77aef758fa7312dbe3,
title = "Evidence for tt¯ tt¯ production in the multilepton final state in proton–proton collisions at √s=13 TeV with the ATLAS detector: European Physical Journal C",
abstract = "A search is presented for four-top-quark production using an integrated luminosity of 139 fb-1 of proton–proton collision data at a centre-of-mass energy of 13TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be 24-6+7 fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 4.3 (2.4) standard deviations and provides evidence for this process. ",
author = "ATLAS Collaboration and A.E. Barton and I.A. Bertram and G. Borissov and E.V. Bouhova-Thacker and H. Fox and R.C.W. Henderson and R.W.L. Jones and V. Kartvelishvili and R.E. Long and P.A. Love and D. Muenstermann and A.J. Parker and Izaac Sanderswood and M. Smizanska and A.S. Tee and J. Walder and A.M. Wharton and B.W. Whitmore and Melissa Yexley",
year = "2020",
month = nov,
day = "24",
doi = "10.1140/epjc/s10052-020-08509-3",
language = "English",
volume = "80",
journal = "Eur. Phys. J. C",
issn = "1434-6044",
publisher = "SPRINGER",
number = "11",

}

RIS

TY - JOUR

T1 - Evidence for tt¯ tt¯ production in the multilepton final state in proton–proton collisions at √s=13 TeV with the ATLAS detector

T2 - European Physical Journal C

AU - Collaboration, ATLAS

AU - Barton, A.E.

AU - Bertram, I.A.

AU - Borissov, G.

AU - Bouhova-Thacker, E.V.

AU - Fox, H.

AU - Henderson, R.C.W.

AU - Jones, R.W.L.

AU - Kartvelishvili, V.

AU - Long, R.E.

AU - Love, P.A.

AU - Muenstermann, D.

AU - Parker, A.J.

AU - Sanderswood, Izaac

AU - Smizanska, M.

AU - Tee, A.S.

AU - Walder, J.

AU - Wharton, A.M.

AU - Whitmore, B.W.

AU - Yexley, Melissa

PY - 2020/11/24

Y1 - 2020/11/24

N2 - A search is presented for four-top-quark production using an integrated luminosity of 139 fb-1 of proton–proton collision data at a centre-of-mass energy of 13TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be 24-6+7 fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 4.3 (2.4) standard deviations and provides evidence for this process. 

AB - A search is presented for four-top-quark production using an integrated luminosity of 139 fb-1 of proton–proton collision data at a centre-of-mass energy of 13TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be 24-6+7 fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 4.3 (2.4) standard deviations and provides evidence for this process. 

U2 - 10.1140/epjc/s10052-020-08509-3

DO - 10.1140/epjc/s10052-020-08509-3

M3 - Journal article

VL - 80

JO - Eur. Phys. J. C

JF - Eur. Phys. J. C

SN - 1434-6044

IS - 11

M1 - 1085

ER -