Measurement of the isolated diphoton cross section in pp collisions at s√=7 TeV with the ATLAS detector

The ATLAS collaboration (2012) Measurement of the isolated diphoton cross section in pp collisions at s√=7  TeV with the ATLAS detector. Physical Review D, 85 (1). ISSN 1550-7998

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The ATLAS experiment has measured the production cross section of events with two isolated photons in the final state, in proton-proton collisions at 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 (mγγ), total transverse momentum (pT,γγ), and azimuthal separation (Δϕγγ), are presented and compared to the predictions of next-to-leading-order QCD.

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Journal Article
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Physical Review D
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Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2012 CERN, for the ATLAS Collaboration
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04 Jan 2014 00:06
Last Modified:
16 Sep 2023 01:03