Measurement of W gamma and Z gamma production cross sections in pp collisions at root s=7 TeV and limits on anomalous triple gauge couplings with the ATLAS detector


Aad G., Abbott B., Abdallah J., Khalek S. A. , Abdelalim A. A. , Abdinov O., ...More

PHYSICS LETTERS B, vol.717, pp.49-69, 2012 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 717
  • Publication Date: 2012
  • Doi Number: 10.1016/j.physletb.2012.09.017
  • Title of Journal : PHYSICS LETTERS B
  • Page Numbers: pp.49-69

Abstract

This Letter presents measurements of l(+/-) nu gamma and l(+)l(-)gamma (l = e.mu) production in 1.02 fb(-1) of pp collision data recorded at root s = 7 TeV with the ATLAS detector at the LHC in the first half of 2011. Events dominated by W gamma and Z gamma production with leptonic decays of the W and Z bosons are selected, and their production cross sections and kinematic properties are measured in several ranges of the photon transverse energy. The results are compared to Standard Model predictions and are used to determine limits on anomalous WW gamma and ZZ gamma/Z gamma gamma couplings. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.