Search for Standard Model Higgs boson in the two-photon final state in ATLAS
LPNHE des Universitées Paris VI et Paris VII, IN2P3/CNRS, F-75252 Paris, France
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We report on the search for the Standard Model Higgs boson decaying into two photons based on proton-proton collision data with a center-of-mass energy of 7 TeV recorded by the ATLAS experiment at the LHC. The dataset has an integrated luminosity of about 1:08 fb−1. The expected cross section exclusion at 95% confidence level varies between 2:0 and 5:8 times the Standard Model cross section over the diphoton mass range 110 – 150 GeV. The maximum deviations from the background-only expectation are consistent with statistical fluctuations.
© Owned by the authors, published by EDP Sciences, 2012