Measurement of the isolated diphoton cross section in pp collisions at root s=7 TeV with the ATLAS detector
2012 (English)In: Physical Review D, ISSN 1550-7998, Vol. 85, no 1, 012003- p.Article in journal (Refereed) Published
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.
IdentifiersURN: urn:nbn:se:uu:diva-171780DOI: 10.1103/PhysRevD.85.012003ISI: 000298989300001OAI: oai:DiVA.org:uu-171780DiVA: diva2:512385
With 3031 more authors from the ATLAS Collaboration.2012-03-272012-03-272012-03-27Bibliographically approved