Di-boson results at ATLAS
DSM/IRFU (Institut de Recherches sur les Lois Fondamentales de l’Univers), CEA Saclay (Commissariat à làEnergie Atomique), Gif-sur-Yvette, France
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Pairs of gauge boson produced in proton-proton collisions at a center-of-mass energy √s of 7 TeV are reconstructed with the ATLAS detector in their leptonic final states. Based on samples of integrated luminosity = 1.0 fb−1 (for WW, WZ and ZZ) and 35 pb−1 (for Wγ and Zγ) of 2011 and 2010 LHC data, the total di-boson production cross sections are measured. They are found, together with the kinematic distributions of the selected di-boson systems to be compatible with the expectation from the Standard Model. The di-boson production also gives a handle on possible anomalous triple gauge boson couplings, for which 95% confidence limits are set.
© Owned by the authors, published by EDP Sciences, 2012