dc.creatorAlconada Verzini, María Josefina
dc.creatorAlonso, Francisco
dc.creatorArduh, Francisco Anuar
dc.creatorDova, María Teresa
dc.creatorHoya, Joaquín
dc.creatorMonticelli, Fernando Gabriel
dc.creatorWahlberg, Hernán Pablo
dc.creatorThe ATLAS Collaboration
dc.date2017
dc.date2019-12-18T13:48:53Z
dc.date.accessioned2023-07-14T17:43:09Z
dc.date.available2023-07-14T17:43:09Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/87630
dc.identifierissn:2470-0010
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7428570
dc.descriptionA measurement of the production cross section for two isolated photons in proton-proton collisions at a center-of-mass energy of s=8 TeV is presented. The results are based on an integrated luminosity of 20.2 fb-1 recorded by the ATLAS detector at the Large Hadron Collider. The measurement considers photons with pseudorapidities satisfying |ηγ|<1.37 or 1.56<|ηγ|<2.37 and transverse energies of respectively ET,1γ>40 GeV and ET,2γ>30 GeV for the two leading photons ordered in transverse energy produced in the interaction. The background due to hadronic jets and electrons is subtracted using data-driven techniques. The fiducial cross sections are corrected for detector effects and measured differentially as a function of six kinematic observables. The measured cross section integrated within the fiducial volume is 16.8±0.8 pb. The data are compared to fixed-order QCD calculations at next-to-leading-order and next-to-next-to-leading-order accuracy as well as next-to-leading-order computations including resummation of initial-state gluon radiation at next-to-next-to-leading logarithm or matched to a parton shower, with relative uncertainties varying from 5% to 20%.
dc.descriptionLa lista completa de autores que integran el documento puede consultarse en el archivo
dc.descriptionInstituto de Física La Plata
dc.formatapplication/pdf
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by/4.0/
dc.rightsCreative Commons Attribution 4.0 International (CC BY 4.0)
dc.subjectFísica
dc.subjectProton-proton collisions
dc.subjectLarge Hadron Collider
dc.titleMeasurements of integrated and differential cross sections for isolated photon pair production in pp collisions at √ s = 8 TeV with the ATLAS detector
dc.typeArticulo
dc.typeArticulo


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