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Measurement of the isolated diphoton cross section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
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2012 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 85, no 1, 012003- p.Article in journal (Refereed) Published
Abstract [en]

The ATLAS experiment has measured the production cross section of events with two isolated photons in the final state, in proton-proton collisions at root s = 7 TeV. The full data set acquired in 2010 is used, corresponding to an integrated luminosity of 37 pb(-1). The background, consisting of hadronic jets and isolated electrons, is estimated with fully data-driven techniques and subtracted. The differential cross sections, as functions of the di-photon mass (m(gamma gamma)), total transverse momentum (p(T),(gamma gamma)), and azimuthal separation (Delta phi(gamma gamma)), are presented and compared to the predictions of next-to-leading-order QCD.

Place, publisher, year, edition, pages
2012. Vol. 85, no 1, 012003- p.
Keyword [en]
PHOTON PAIR PRODUCTION, TO-LEADING ORDER
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:kth:diva-84540DOI: 10.1103/PhysRevD.85.012003ISI: 000298989300001Scopus ID: 2-s2.0-84863027995OAI: oai:DiVA.org:kth-84540DiVA: diva2:499491
Note
QC 20120214Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2017-12-07Bibliographically approved

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Strandberg, Jonas

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