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dc.contributor.authorAaboud, M.en_US
dc.contributor.authorAad, G.en_US
dc.contributor.authorAbbott, B.en_US
dc.contributor.authorAbdinov, O.en_US
dc.contributor.authorAbeloos, B.en_US
dc.contributor.authorAbidi, S. H.en_US
dc.contributor.authorAbouZeid, O. S.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorMeirose, Bernharden_US
dc.contributor.authorReeves, Kendallen_US
dc.contributor.authorATLAS Collaborationen_US
dc.date.accessioned2018-09-27T14:42:42Z
dc.date.available2018-09-27T14:42:42Z
dc.date.created2018-01en_US
dc.date.issued2018-09-27
dc.identifier.issn0370-2693en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/6169
dc.description.abstractThis Letter presents the measurement of differential cross sections of isolated prompt photons produced in association with a b-jet or a c-jet. These final states provide sensitivity to the heavy-flavour content of the proton and aspects related to the modelling of heavy-flavour quarks in perturbative QCD. The measurement uses proton-proton collision data at a centre-of-mass energy of 8 TeV recorded by the ATLAS detector at the LHC in 2012 corresponding to an integrated luminosity of up to 20.2 fb⁻¹. The differential cross sections are measured for each jet flavour with respect to the transverse energy of the leading photon in two photon pseudorapidity regions: |η(γ)| < 1.37 and 1.56 < |η(γ)| < 2.37. The measurement covers photon transverse energies 25 < E(T)(γ) < 400 GeV and 25 < E(T)(γ) < 350 GeV respectively for the two |η(γ)| regions. For each jet flavour, the ratio of the cross sections in the two |η(γ)| regions is also measured. The measurement is corrected for detector effects and compared to leading-order and next-to-leading-order perturbative QCD calculations, based on various treatments and assumptions about the heavy-flavour content of the proton. Overall, the predictions agree well with the measurement, but some deviations are observed at high photon transverse energies. The total uncertainty in the measurement ranges between 13% and 66%, while the central γ+b measurement exhibits the smallest uncertainty, ranging from 13% to 27%, which is comparable to the precision of the theoretical predictions.en_US
dc.language.isoenen_US
dc.publisherElsevier Science B.V.en_US
dc.relation.urihttp://dx.doi.org/10.1016/j.physletb.2017.11.054
dc.rightsCC BY 4.0 (Attribution)en_US
dc.rights©2017 The Authorsen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourcePhysics Letters B
dc.subjectIntrinsic charmen_US
dc.subjectShowersen_US
dc.subjectProtonen_US
dc.subjectLhcen_US
dc.subjectAstronomy & astrophysicsen_US
dc.subjectPhysicsen_US
dc.subjecten_US
dc.subjecten_US
dc.subjecten_US
dc.subjecten_US
dc.subjecten_US
dc.titleMeasurement of Differential Cross Sections of Isolated-Photon Plus Heavy-Flavour Jet Production in pp Collisions at √s=8 TeV Using the ATLAS Detectoren_US
dc.type.genrearticleen_US
dc.identifier.bibliographicCitationAaboudd, M., G. Aad, B. Abbott, O. Abdinov, et al. 2018. "Measurement of differential cross sections of isolated-photon plus heavy-flavour jet production in pp collisions at √s=8 TeV using the ATLAS detector." Physics Letters B 776: 295-317.en_US
dc.identifier.volume776en_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorMeirose, Bernharden_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.contributor.VIAF250674117 (Izen, JM)en_US


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