Measurement of the isolated di-photon cross-section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

ATLAS Collaboration; Wahid Bhimji; Andy Buckley; Philip Clark; Robert Harrington; Victoria Martin

doi:10.1103/PhysRevD.85.012003

Measurement of the isolated di-photon cross-section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

ATLAS Collaboration, Wahid Bhimji, Andy Buckley, Philip Clark, Robert Harrington, Victoria Martin

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

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

Original language	English
Article number	012003
Number of pages	28
Journal	Physical Review D
Volume	85
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevD.85.012003
Publication status	Published - 2012

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hep-ex

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10.1103/PhysRevD.85.012003

PDF - Measurement of the isolated diphoton cross section in pp collisions at √s=7 TeV with the ATLAS detector
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http://arxiv.org/abs/1107.0581

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AU - Harrington, Robert

AU - Martin, Victoria

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Measurement of the isolated di-photon cross-section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector

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