%0 Journal Article %T Measurement of the isolated diphoton cross section in pp collisions at root s=7 TeV with the ATLAS detector %A ATLAS Collaboration (Aad, G. et al %A Amoros, G. %A Cabrera Urban, S. %A Castillo Gimenez, V. %A Costa, M. J. %A Escobar, C. %A Ferrer, A. %A Fiorini, L. %A Fuster, J. %A Garcia, C. %A Gonzalez de la Hoz, S. %A Hernandez Jimenez, Y. %A Higon-Rodriguez, E. %A Irles Quiles, A. %A Kaci, M. %A Lacasta, C. %A Lacuesta, V. R. %A Marti-Garcia, S. %A Miñano, M. %A Mitsou, V. A. %A Moles-Valls, R. %A Moreno Llacer, M. %A Oliver Garcia, E. %A Perez Garcia-Estañ, M. T. %A Ros, E. %A Salt, J. %A Solans, C. A. %A Soldevila, U. %A Sanchez, J. %A Torro Pastor, E. %A Valladolid Gallego, E. %A Valls Ferrer, J. A. %A Villaplana Perez, M. %A Vos, M. %A Wildauer, A. %J Physical Review D %D 2012 %V 85 %N 1 %I Amer Physical Soc %@ 1550-7998 %G English %F ATLASCollaborationAad_etal2012 %O WOS:000298989300001 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=873), last updated on Thu, 09 Feb 2012 12:49:08 +0000 %X 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. %R 10.1103/PhysRevD.85.012003 %U http://arxiv.org/abs/1107.0581 %U https://doi.org/10.1103/PhysRevD.85.012003 %P 012003-28pp