Butterworth, Jonathan;
ATLAS Collaboration;
(2024)
Measurement of the
cross section and its ratio to the Z production cross section using pp collisions at
TeV with the ATLAS detector.
Physics Letters B: Nuclear Physics and Particle Physics
, 848
, Article 138376. 10.1016/j.physletb.2023.138376.
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Abstract
The inclusive top-quark-pair production cross section and its ratio to the Z-boson production cross section have been measured in proton–proton collisions at 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 pb. The ratio of the and the Z-boson production cross sections is also measured, where the Z-boson contribution is determined for inclusive and events in a fiducial phase space. The relative uncertainty on the ratio is reduced compared to the cross section, thanks to the cancellation of several systematic uncertainties. The result for the ratio, is consistent with the Standard Model prediction using the PDF4LHC21 PDF set.
| Type: | Article |
|---|---|
| Title: | Measurement of the cross section and its ratio to the Z production cross section using pp collisions at TeV with the ATLAS detector |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.physletb.2023.138376 |
| Publisher version: | https://doi.org/10.1016/j.physletb.2023.138376 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10186354 |
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