Measurement of differential cross sections for the production of a pair of isolated photons in pp collisions at ?s=7TeV

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dc.authoridArcidiacono, Roberta/0000-0001-5904-142X
dc.authoridGhosh, Saranya Samik/0000-0001-6717-0803
dc.authoridVilela Pereira, Antonio/0000-0003-3177-4626
dc.authoridMarzocchi, Badder/0000-0001-6687-6214
dc.authoridVan Onsem, Gerrit/0000-0002-1664-2337
dc.authoridTosi, Mia/0000-0003-4050-1769
dc.authoridWolszczak, Weronika/0000-0001-7819-6945
dc.contributor.authorChatrchyan, S.
dc.contributor.authorKhachatryan, V.
dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorBergauer, T.
dc.contributor.authorThe CMS Collaboration
dc.date.accessioned2025-03-07T20:13:01Z
dc.date.available2025-03-07T20:13:01Z
dc.date.issued2014
dc.departmentÇağ Üniversitesi
dc.description.abstractA measurement of differential cross sections for the production of a pair of isolated photons in proton-proton collisions at root s = 7 TeV is presented. The data sample corresponds to an integrated luminosity of 5.0 fb(-1) collected with the CMS detector. A data-driven isolation template method is used to extract the prompt diphoton yield. The measured cross section for two isolated photons, with transverse energy above 40 and 25 GeV respectively, in the pseudorapidity range vertical bar eta vertical bar < 2.5, vertical bar eta vertical bar (sic) [1.44, 1.57] and with an angular separation Delta R > 0.45, is 17.2 +/-0.2 (stat) +/-1.9 (syst) +/- 0.4 (lumi) pb. Differential cross sections are measured as a function of the diphoton invariant mass, the diphoton transverse momentum, the azimuthal angle difference between the two photons, and the cosine of the polar angle in the Collins-Soper reference frame of the diphoton system. The results are compared to theoretical predictions at leading, next-to-leading, and next-to-next-to-leading order in quantum chromodynamics.
dc.description.sponsorshipSCOAP3; STFC [ST/I005912/1, ST/J50094X/1, ST/L005603/1, ST/K001639/1, ST/L00609X/1, ST/I505580/1, ST/J005665/1, ST/J004901/1, ST/K003542/1, ST/K003844/1, ST/H00081X/2] Funding Source: UKRI; Direct For Mathematical & Physical Scien; Division Of Physics [0906479, 1120138, 1314131] Funding Source: National Science Foundation; Division Of Physics; Direct For Mathematical & Physical Scien [1151640, 1205960, 1306951] Funding Source: National Science Foundation
dc.description.sponsorshipFunded by SCOAP3 / License Version CC BY 4.0.
dc.identifier.doi10.1140/epjc/s10052-014-3129-3
dc.identifier.issn1434-6044
dc.identifier.issn1434-6052
dc.identifier.issue11
dc.identifier.urihttps://doi.org/10.1140/epjc/s10052-014-3129-3
dc.identifier.urihttps://hdl.handle.net/20.500.12507/2860
dc.identifier.volume74
dc.identifier.wosWOS:000347170900001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofEuropean Physical Journal C
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20241226
dc.titleMeasurement of differential cross sections for the production of a pair of isolated photons in pp collisions at ?s=7TeV
dc.typeArticle

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