2,626 research outputs found

    Top-quark production at ATLAS

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    Studies of the top-quark are an important part of the ATLAS physics program at the LHC. Such studies offer a precision test of the Standard Model, but could also reveal hints of new phenomena. A short summary of the most recent ATLAS results on the study of top-quark production are presented here

    Standalone vertex finding in the ATLAS muon spectrometer

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    A dedicated reconstruction algorithm to find decay vertices in the ATLAS muon spectrometer is presented. The algorithm searches the region just upstream of or inside the muon spectrometer volume for multi-particle vertices that originate from the decay of particles with long decay paths. The performance of the algorithm is evaluated using both a sample of simulated Higgs boson events, in which the Higgs boson decays to long-lived neutral particles that in turn decay to bbar b final states, and pp collision data at √s = 7 TeV collected with the ATLAS detector at the LHC during 2011

    Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC