Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
Popovic, D. S.
Vranješ Milosavljević, Marija
ATLAS Collaboration (ukupan broj autora: 2933)
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A search for the Standard Model Higgs boson in proton-proton collisions with the ATLAS detector at the LHC is presented. The datasets used correspond to integrated luminosities of approximately 4.8 fb(-1) collected at, root s = 7 TeV in 2011 and 5.8 fb(-1) at root s = 8 TeV in 2012. Individual searches in the channels H - GT ZZ(()*()) - GT 4l, H - GT gamma gamma and H - GT WW (()*()) - GT ev mu v in the 8 TeV data are combined with previously published results of searches for H - GT ZZ(()*()), WW(*()), b (b) over bar and tau(+)tau(-) in the 7 TeV data and results from improved analyses of the H - GT ZZ(()*()) - GT 4l and H - GT gamma gamma channels in the 7 TeV data. Clear evidence for the production of a neutral boson with a measured mass of 126.0 +/- 0.4 (stat) +/- 0.4 (sys) GeV is presented. This observation, which has a significance of 5.9 standard deviations, corresponding to a background fluctuation probability of 1.7 x 10(-9), is compatible with the production and decay of the S...tandard Model Higgs boson. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
Source:Physics Letters B, 2012, 716, 1, 1-29
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