WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/11147/7150

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Department: search.filters.department.Izmir Institute of TechnologySubject: search.filters.subject.Top Physics

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  • Erratum
    Citation - WoS: 13
    Citation - Scopus: 9
    Erratum: Measurement of the Tt̄ Production Cross Section in the Dilepton Channel in pp Collisions at √s = 8 TeV (Journal of High Energy Physics (2014) 02 (024))
    (Springer Verlag, 2014) Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Smith, W. H.; 01. Izmir Institute of Technology
  • Article
    Citation - WoS: 2
    Citation - Scopus: 14
    Combination of Inclusive Top-Quark Pair Production Cross-Section Measurements Using Atlas and Cms Data at S = 7 and 8 Tev
    (Springer Science and Business Media Deutschland GmbH, 2023) Aad,G.; Abbott,B.; Abbott,D.C.; Abed Abud,A.; Abeling,K.; Abhayasinghe,D.K.; Jiggins,S.; 01. Izmir Institute of Technology
    A combination of measurements of the inclusive top-quark pair production cross-section performed by ATLAS and CMS in proton–proton collisions at centre-of-mass energies of 7 and 8 TeV at the LHC is presented. The cross-sections are obtained using top-quark pair decays with an opposite-charge electron–muon pair in the final state and with data corresponding to an integrated luminosity of about 5 fb−1 at s = 7 TeV and about 20 fb−1 at s = 8 TeV for each experiment. The combined cross-sections are determined to be 178.5 ± 4.7 pb at s = 7 TeV and 243.3−5.9+6.0 pb at s = 8 TeV with a correlation of 0.41, using a reference top-quark mass value of 172.5 GeV. The ratio of the combined cross-sections is determined to be R8/7 = 1.363 ± 0.032. The combined measured cross-sections and their ratio agree well with theory calculations using several parton distribution function (PDF) sets. The values of the top-quark pole mass (with the strong coupling fixed at 0.118) and the strong coupling (with the top-quark pole mass fixed at 172.5 GeV) are extracted from the combined results by fitting a next-to-next-to-leading-order plus next-to-next-to-leading-log QCD prediction to the measurements. Using a version of the NNPDF3.1 PDF set containing no top-quark measurements, the results obtained are mtpole=173.4−2.0+1.8 GeV and αsmZ=0.1170−0.0018+0.0021. © The Author(s) 2023.