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dc.contributor.authorAad, Georges
dc.contributor.authorAbbott, Brad
dc.contributor.authorAbbott, Dale C.
dc.contributor.authorAbed Abud, Adam
dc.contributor.authorAbeling, Kira
dc.contributor.authorAbhayasinghe, Deshan Kavishka
dc.contributor.authorAbidi, Syed Haider
dc.contributor.authorAbramowicz, Halina
dc.contributor.authorAbreu, Henso
dc.contributor.authorAbulaiti, Yiming
dc.contributor.authorBjørke, Kristian
dc.contributor.authorBugge, Magnar Kopangen
dc.contributor.authorCameron, David Gordon
dc.contributor.authorCatmore, James Richard
dc.contributor.authorGaronne, Vincent
dc.contributor.authorGramstad, Eirik
dc.contributor.authorHeggelund, Andreas
dc.contributor.authorHellesund, Simen
dc.contributor.authorHåland, Even Simonsen
dc.contributor.authorMorisbak, Vanja
dc.contributor.authorOuld-Saada, Farid
dc.contributor.authorPedersen, Maiken
dc.contributor.authorRead, Alexander Lincoln
dc.contributor.authorRye, Eli Bæverfjord
dc.contributor.authorRøhne, Ole Myren
dc.contributor.authorSandaker, Heidi
dc.contributor.authorVadla, Knut Oddvar Høie
dc.contributor.authorBuanes, Trygve
dc.contributor.authorDjuvsland, Julia Isabell
dc.contributor.authorEigen, Gerald
dc.contributor.authorLatour, Bertrand Pascal Christian
dc.contributor.authorLee, Graham Richard
dc.contributor.authorLipniacka, Anna
dc.contributor.authorStugu, Bjarne Sandvik
dc.contributor.authorFomin, Nikolai
dc.contributor.authorTræet, Are Sivertsen
dc.contributor.authorAbusleme Hoffman, Angel C.
dc.contributor.authorAcharya, Bobby S.
dc.contributor.authorAchkar, Baida
dc.contributor.authorAdam, Lennart
dc.contributor.authorAdam-Bourdarios, Claire
dc.contributor.authorAdamczyk, Leszek
dc.contributor.authorAdamek, Lukas
dc.contributor.authorAddepalli, Sagar Vidya
dc.contributor.authorAdelman, Jareed
dc.contributor.authorAdigüzel, Aytül
dc.contributor.authorAdorni, Sofia
dc.contributor.authorAdye, Tim
dc.contributor.authorAffolder, Anthony Allen
dc.contributor.authorATLAS, Collaboration
dc.date.accessioned2022-03-25T13:41:57Z
dc.date.available2022-03-25T13:41:57Z
dc.date.created2022-02-15T13:59:46Z
dc.date.issued2021
dc.identifier.issn1126-6708
dc.identifier.urihttps://hdl.handle.net/11250/2987697
dc.description.abstractA measurement of prompt photon-pair production in proton-proton collisions at √s = 13 TeV is presented. The data were recorded by the ATLAS detector at the LHC with an integrated luminosity of 139 fb−1. Events with two photons in the well-instrumented region of the detector are selected. The photons are required to be isolated and have a transverse momentum of pT,γ1(2) > 40 (30) GeV for the leading (sub-leading) photon. The differential cross sections as functions of several observables for the diphoton system are measured and compared with theoretical predictions from state-of-the-art Monte Carlo and fixed-order calculations. The QCD predictions from next-to-next-to-leading-order calculations and multi-leg merged calculations are able to describe the measured integrated and differential cross sections within uncertainties, whereas lower-order calculations show significant deviations, demonstrating that higher-order perturbative QCD corrections are crucial for this process. The resummed predictions with parton showers additionally provide an excellent description of the low transverse-momentum regime of the diphoton system.en_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleMeasurement of the production cross section of pairs of isolated photons in pp collisions at 13 TeV with the ATLAS detectoren_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright CERN, for the benefit of the ATLAS Collaboration. 2021en_US
dc.source.articlenumber169en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.doi10.1007/JHEP11(2021)169
dc.identifier.cristin2001839
dc.source.journalJournal of High Energy Physics (JHEP)en_US
dc.relation.projectNorges forskningsråd: 310713en_US
dc.subject.nsiVDP::Kjerne- og elementærpartikkelfysikk: 431en_US
dc.subject.nsiVDP::Nuclear and elementary particle physics: 431en_US
dc.identifier.citationJournal of High Energy Physics (JHEP). 2021, 2021(11):169.en_US
dc.source.volume2021en_US
dc.source.issue11en_US


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