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

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

Research output: Contribution to journalArticlepeer-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 languageEnglish
Article number012003
Number of pages28
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume85
Issue number1
DOIs
Publication statusPublished - 2012

Keywords

  • hep-ex

Fingerprint Dive into the research topics of 'Measurement of the isolated di-photon cross-section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector'. Together they form a unique fingerprint.

Cite this