Measurement of the tt production cross-section and lepton differential distributions in e mu dilepton events from pp collisions at root s=13 TeV with the ATLAS detector
- NázevTitle
- Measurement of the tt production cross-section and lepton differential distributions in e mu dilepton events from pp collisions at root s=13 TeV with the ATLAS detectorMeasurement of the tt production cross-section and lepton differential distributions in e mu dilepton events from pp collisions at root s=13 TeV with the ATLAS detector
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- G. Aad, B. Abbott, D. C. Abbott, A. Abud, B. Ali, K. Augsten, B. Bergmann, M. Havránek, Z. Hubáček, M. Myška, R. Novotný, S. Pospíšil, K. Smolek, A. Sopczak, V. Vacek, P. Vokáč, V. Vrba
- Klíčová slovaKeywords
- parton distribution, top quark
- ExperimentCollaboration
- ATLAS
- DOIDOI
- 10.1140/epjc/s10052-020-7907-9
- Časopis / citaceJournal / citation
- The European Physical Journal C 80(6), 528 (2020) · ISSN 1434-6044
- RokYear
- 2020
- JazykLanguage
- eng
- ZáznamyRecords
- ProjektProject
- Centrum pokročilých aplikovaných přírodních vědCenter for advanced applied sciences; Získávání nových poznatků o mikrosvětě v infrastruktuře CERNAcquiring new pieces of knowledge about micro-world in CERN research infrastructure
- CitovánoCited by
- 194 (INSPIRE-HEP)
- Plný text (open access)Full text (open access)
- https://link.springer.com/content/pdf/10.1140/epjc/s10052-020-7907-9.pdf
- Citace ke staženíDownload citation
- TXT · BibTeX
AbstraktAbstract
The inclusive top quark pair (tt̅) production cross-section sigma tt̅ has been measured in proton-proton collisions at √s=13 TeV, using 36.1 fb-1 of data collected in 2015-2016 by the ATLAS experiment at the LHC. Using events with an opposite-charge e mu pair and b-tagged jets, the cross-section is measured to be: sigma tt̅=826.4 +/- 3.6 (stat) +/- 11.5 (syst) +/- 15.7 (lumi) +/- 1.9 (beam) pb,where the uncertainties reflect the limited size of the data sample, experimental and theoretical systematic effects, the integrated luminosity, and the LHC beam energy, giving a total uncertainty of 2.4%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. It is used to determine the top quark pole mass via the dependence of the predicted cross-section on mtpole, giving mtpole=173.1-2.1+2.0 GeV. It is also combined with measurements at √s=7 TeV and √s=8 TeV to derive ratios and double ratios of tt̅ and Z cross-sections at different energies. The same event sample is used to measure absolute and no
The inclusive top quark pair (tt̅) production cross-section sigma tt̅ has been measured in proton-proton collisions at √s=13 TeV, using 36.1 fb-1 of data collected in 2015-2016 by the ATLAS experiment at the LHC. Using events with an opposite-charge e mu pair and b-tagged jets, the cross-section is measured to be: sigma tt̅=826.4 +/- 3.6 (stat) +/- 11.5 (syst) +/- 15.7 (lumi) +/- 1.9 (beam) pb,where the uncertainties reflect the limited size of the data sample, experimental and theoretical systematic effects, the integrated luminosity, and the LHC beam energy, giving a total uncertainty of 2.4%. The result is consistent with theoretical QCD calculations at next-to-next-to-leading order. It is used to determine the top quark pole mass via the dependence of the predicted cross-section on mtpole, giving mtpole=173.1-2.1+2.0 GeV. It is also combined with measurements at √s=7 TeV and √s=8 TeV to derive ratios and double ratios of tt̅ and Z cross-sections at different energies. The same event sample is used to measure absolute and no