Measurement of the 𝑡̄𝑡 cross section and its ratio to the 𝑍 production cross section using 𝑝𝑝 collisions at √𝑠 = 13.6 TeV with the ATLAS detector
The inclusive top-quark-pair production cross section σtt¯ and its ratio to the Z-boson production cross section have been measured in proton-proton collisions at s=13.6 TeV, using 29 fb−1 of data collected in 2022 with the ATLAS experiment at the Large Hadron Collider. Using events with an opposite...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
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| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
January 2024
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| In: |
Physics letters
Year: 2024, Volume: 848, Pages: 1-25 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2023.138376 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1016/j.physletb.2023.138376 Verlag, kostenfrei, Volltext: https://www.sciencedirect.com/science/article/pii/S0370269323007104 
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| Author Notes: | the ATLAS Collaboration |
MARC
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| 245 | 1 | 0 | |a Measurement of the ̄ cross section and its ratio to the production cross section using collisions at √ = 13.6 TeV with the ATLAS detector |c the ATLAS Collaboration |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 3 | |a Measurement of the ̄ cross section and its ratio to the production cross section using collisions at square root equal 13.6 TeV with the ATLAS detector |
| 264 | 1 | |c January 2024 | |
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| 500 | |a Gesehen am 17.07.2024 | ||
| 500 | |a Online verfügbar: 7. Dezember 2023, Artikelversion: 12. Dezember 2023 | ||
| 500 | |a The ATLAS Collaboration: G. Aad, L.M. Baltes, F. Bartels, M.M. Czurylo, S.J. Dittmeier, M. Dunford, S. Franchino, M. Klassen, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, S. Rodriguez Bosca, C. Sauer, A. Schoening, H.-C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, L. Vigani, S.M. Weber, M. Wessels, J. Zinsser [und 2926 weitere] | ||
| 520 | |a The inclusive top-quark-pair production cross section σtt¯ and its ratio to the Z-boson production cross section have been measured in proton-proton collisions at s=13.6 TeV, using 29 fb−1 of data collected in 2022 with the ATLAS experiment at the Large Hadron Collider. Using events with an opposite-charge electron-muon pair and b-tagged jets, and assuming Standard Model decays, the top-quark-pair production cross section is measured to be σtt¯=850±3(stat.)±18(syst.)±20(lumi.) pb. The ratio of the tt¯ and the Z-boson production cross sections is also measured, where the Z-boson contribution is determined for inclusive e+e− and μ+μ− events in a fiducial phase space. The relative uncertainty on the ratio is reduced compared to the tt¯ cross section, thanks to the cancellation of several systematic uncertainties. The result for the ratio, Rtt¯/Z=1.145±0.003(stat.)±0.021(syst.)±0.002(lumi.) is consistent with the Standard Model prediction using the PDF4LHC21 PDF set. | ||
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