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dc.contributor.authorThe ATLAS Collaborationen
dc.contributor.authorAad, G.en
dc.identifier.citationJournal of High Energy Physics, 2014; 1407(7):1-51en
dc.description.abstractThe prompt and non-prompt production cross-sections for the χc1 and χc2 charmonium states are measured in pp collisions at s√ = 7 TeV with the ATLAS detector at the LHC using 4.5 fb−1 of integrated luminosity. The χc states are reconstructed through the radiative decay χc → J/ψγ (with J/ψ → μ+μ−) where photons are reconstructed from γ → e+e− conversions. The production rate of the χc2 state relative to the χc1 state is measured for prompt and non-prompt χc as a function of J/ψ transverse momentum. The prompt χc cross-sections are combined with existing measurements of prompt J/ψ production to derive the fraction of prompt J/ψ produced in feed-down from χc decays. The fractions of χc1 and χc2 produced in b-hadron decays are also measured.en
dc.description.statementofresponsibilityG. Aad … P. Jackson … L. Lee … A. Petridis … N. Soni ... M. White ... et al. (The ATLAS Collaboration)en
dc.rights© The Author(s) 2014. Open Access, Copyright CERN, for the benefit of the ATLAS Collaboration. Article funded by SCOAP3. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.en
dc.subjectHadron-Hadron scatteringen
dc.titleMeasurement of χc₁ and χc₂ production with √s= 7 TeV pp collisions at ATLASen
dc.title.alternativeMeasurement of chi c(1) and chi c(2) production with root s= 7 TeV pp collisions at ATLASen
dc.typeJournal articleen
pubs.library.collectionPhysics publicationsen
Appears in Collections:Physics publications

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