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Measurement of the tt¯ production cross-section in pp collisions at √s = 5.02 TeV with the ATLAS detector

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Measurement of the tt¯ production cross-section in pp collisions at √s = 5.02 TeV with the ATLAS detector. / The ATLAS collaboration.
In: J. High Energy Phys., Vol. 2023, No. 6, 138, 23.06.2023.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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The ATLAS collaboration. Measurement of the tt¯ production cross-section in pp collisions at √s = 5.02 TeV with the ATLAS detector. J. High Energy Phys. 2023 Jun 23;2023(6):138. doi: 10.1007/JHEP06(2023)138

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The ATLAS collaboration. / Measurement of the tt¯ production cross-section in pp collisions at √s = 5.02 TeV with the ATLAS detector. In: J. High Energy Phys. 2023 ; Vol. 2023, No. 6.

Bibtex

@article{e3efada50aba49ffaf6183642db391de,
title = "Measurement of the tt¯ production cross-section in pp collisions at √s = 5.02 TeV with the ATLAS detector",
abstract = "The inclusive top-quark pair (tt¯) production cross-section σtt¯ is measured in proton–proton collisions at a centre-of-mass energy s√ = 5.02 TeV, using 257 pb−1 of data collected in 2017 by the ATLAS experiment at the LHC. The tt¯ cross-section is measured in both the dilepton and single-lepton final states of the tt¯ system and then combined. The combination of the two measurements yieldsσtt¯=67.5±0.9(stat.)±2.3(syst.)±1.1(lumi.)±0.2(beam)pb,where the four uncertainties reflect the limited size of the data sample, experimental and theoretical systematic effects, and imperfect knowledge of both the integrated luminosity and the LHC beam energy, giving a total uncertainty of 3.9%. The result is in agreement with theoretical quantum chromodynamic calculations at next-to-next-to-leading order in the strong coupling constant, including the resummation of next-to-next-to-leading logarithmic soft-gluon terms, and constrains the parton distribution functions of the proton at large Bjorken-x.",
author = "{The 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 P.A. Love and L. Meng and D. Muenstermann and K. Rybacki and M. Smizanska and S. Spinali and A.M. Wharton and Melissa Yexley",
year = "2023",
month = jun,
day = "23",
doi = "10.1007/JHEP06(2023)138",
language = "English",
volume = "2023",
journal = "J. High Energy Phys.",
issn = "1029-8479",
publisher = "Springer-Verlag",
number = "6",

}

RIS

TY - JOUR

T1 - Measurement of the tt¯ production cross-section in pp collisions at √s = 5.02 TeV with the ATLAS detector

AU - The ATLAS collaboration

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 - Love, P.A.

AU - Meng, L.

AU - Muenstermann, D.

AU - Rybacki, K.

AU - Smizanska, M.

AU - Spinali, S.

AU - Wharton, A.M.

AU - Yexley, Melissa

PY - 2023/6/23

Y1 - 2023/6/23

N2 - The inclusive top-quark pair (tt¯) production cross-section σtt¯ is measured in proton–proton collisions at a centre-of-mass energy s√ = 5.02 TeV, using 257 pb−1 of data collected in 2017 by the ATLAS experiment at the LHC. The tt¯ cross-section is measured in both the dilepton and single-lepton final states of the tt¯ system and then combined. The combination of the two measurements yieldsσtt¯=67.5±0.9(stat.)±2.3(syst.)±1.1(lumi.)±0.2(beam)pb,where the four uncertainties reflect the limited size of the data sample, experimental and theoretical systematic effects, and imperfect knowledge of both the integrated luminosity and the LHC beam energy, giving a total uncertainty of 3.9%. The result is in agreement with theoretical quantum chromodynamic calculations at next-to-next-to-leading order in the strong coupling constant, including the resummation of next-to-next-to-leading logarithmic soft-gluon terms, and constrains the parton distribution functions of the proton at large Bjorken-x.

AB - The inclusive top-quark pair (tt¯) production cross-section σtt¯ is measured in proton–proton collisions at a centre-of-mass energy s√ = 5.02 TeV, using 257 pb−1 of data collected in 2017 by the ATLAS experiment at the LHC. The tt¯ cross-section is measured in both the dilepton and single-lepton final states of the tt¯ system and then combined. The combination of the two measurements yieldsσtt¯=67.5±0.9(stat.)±2.3(syst.)±1.1(lumi.)±0.2(beam)pb,where the four uncertainties reflect the limited size of the data sample, experimental and theoretical systematic effects, and imperfect knowledge of both the integrated luminosity and the LHC beam energy, giving a total uncertainty of 3.9%. The result is in agreement with theoretical quantum chromodynamic calculations at next-to-next-to-leading order in the strong coupling constant, including the resummation of next-to-next-to-leading logarithmic soft-gluon terms, and constrains the parton distribution functions of the proton at large Bjorken-x.

U2 - 10.1007/JHEP06(2023)138

DO - 10.1007/JHEP06(2023)138

M3 - Journal article

VL - 2023

JO - J. High Energy Phys.

JF - J. High Energy Phys.

SN - 1029-8479

IS - 6

M1 - 138

ER -