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dc.contributor.authorAad, Georgeseng
dc.contributor.authorAbbott, Bradeng
dc.contributor.authorAbdallah, Jalaleng
dc.contributor.authorAbdel Khalek, Samaheng
dc.contributor.authorAbdinov, Ovsat Bahram oglueng
dc.contributor.authorAben, Rosemarieeng
dc.contributor.authorAbi, Babakeng
dc.contributor.authorAbolins, Mariseng
dc.contributor.authorAbouZeid, Hasseng
dc.contributor.authorAbramowicz, Halinaeng
dc.contributor.authorBuanes, Trygveeng
dc.contributor.authorDale, Ørjaneng
dc.contributor.authorEigen, Geraldeng
dc.contributor.authorKastanas, Alexeng
dc.contributor.authorLiebig, Wolfgangeng
dc.contributor.authorLipniacka, Annaeng
dc.contributor.authorMartin dit Latour, Bertrandeng
dc.contributor.authorRosendahl, Peter Lundgaardeng
dc.contributor.authorSandaker, Heidieng
dc.contributor.authorSjursen, Therese B.eng
dc.contributor.authorSmestad, Lillianeng
dc.contributor.authorStugu, Bjarneeng
dc.contributor.authorUgland, Mareneng
dc.contributor.authorBugge, Larseng
dc.contributor.authorBugge, Magnar Kopangeneng
dc.contributor.authorCameron, David Gordoneng
dc.contributor.authorCatmore, James Richardeng
dc.contributor.authorCzyczula, Zofiaeng
dc.contributor.authorFranconi, Lauraeng
dc.contributor.authorGjelsten, Børge Kileeng
dc.contributor.authorGramstad, Eirikeng
dc.contributor.authorMorisbak, Vanjaeng
dc.contributor.authorOuld-Saada, Farideng
dc.contributor.authorPajchel, Katarinaeng
dc.contributor.authorPedersen, Maikeneng
dc.contributor.authorRead, Alexander Lincolneng
dc.contributor.authorRøhne, Ole Myreneng
dc.contributor.authorStapnes, Steinareng
dc.contributor.authorStrandlie, Areeng
dc.contributor.authorAbreu, Hensoeng
dc.contributor.authorAbreu, Rômulo F.eng
dc.contributor.authorAdamczyk, Leszekeng
dc.contributor.authorAdams, Davideng
dc.contributor.authorAdelman, Jareedeng
dc.contributor.authorAdomeit, Stefanieeng
dc.contributor.authorAdye, Timeng
dc.contributor.authorAgatonovic-Jovin, Tatjanaeng
dc.contributor.authorÅkerstedt, Henrikeng
dc.contributor.authorÅkesson, Torsten P.A.eng
dc.contributor.authorÅsman, Barbroeng
dc.contributor.authorATLAS, Collaborationeng
dc.date.accessioned2015-10-06T09:32:13Z
dc.date.available2015-10-06T09:32:13Z
dc.date.issued2014-12-10
dc.PublishedPhysical Review D. Particles and fields 2014, 90(11):112005eng
dc.identifier.issn1089-4918en_US
dc.identifier.urihttps://hdl.handle.net/1956/10550
dc.description.abstractA search has been performed, using the full 20.3 fb\(^{-1}\) data sample of 8 TeV proton--proton collisions collected in 2012 with the ATLAS detector at the LHC, for photons originating from a displaced vertex due to the decay of a neutral long-lived particle into a photon and an invisible particle. The analysis investigates the diphoton plus missing transverse momentum final state, and is therefore most sensitive to pair-production of long-lived particles. The analysis technique exploits the capabilities of the ATLAS electromagnetic calorimeter to make precise measurements of the flight direction, as well as the time of flight, of photons. No excess is observed over the Standard Model predictions for background. Exclusion limits are set within the context of Gauge Mediated Supersymmetry Breaking models, with the lightest neutralino being the next-to-lightest supersymmetric particle and decaying into a photon and gravitino with a lifetime in the range from 250 ps to about 100 ns.en_US
dc.language.isoengeng
dc.publisherAmerican Physical Societyen_US
dc.rightsAttribution CC BYeng
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/eng
dc.titleSearch for non-pointing and delayed photons in the diphoton and missing transverse momentum final state in 8 TeV \(pp\) collisions at the LHC using the ATLAS detectoren_US
dc.typePeer reviewed
dc.typeJournal article
dc.date.updated2015-07-30T08:48:10Z
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2014 CERN, for the ATLAS Collaborationen_US
dc.identifier.doihttps://doi.org/10.1103/physrevd.90.112005
dc.identifier.cristin1195010
dc.subject.nsiVDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431
dc.subject.nsiVDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431


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