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Search for diphoton events with large missing transverse momentum in 7 TeV proton-proton collision data with the ATLAS detector

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    0389849 - FZÚ 2013 RIV NL eng J - Journal Article
    Aad, G. - Abajyan, T. - Abbott, B. - Böhm, Jan - Chudoba, Jiří - Gallus, Petr - Gunther, Jaroslav - Jakoubek, Tomáš - Juránek, Vojtěch - Kepka, Oldřich - Kupčo, Alexander - Kůs, Vlastimil - Lokajíček, Miloš - Marčišovský, Michal - Mikeštíková, Marcela - Myška, Miroslav - Němeček, Stanislav - Růžička, Pavel - Schovancová, Jaroslava - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek - Tic, Tomáš - Valenta, J. - Vrba, Václav - Zeman, Martin … Total 2909 authors
    Search for diphoton events with large missing transverse momentum in 7 TeV proton-proton collision data with the ATLAS detector.
    Physics Letters. B. Roč. 718, č. 2 (2012), s. 411-430. ISSN 0370-2693. E-ISSN 1873-2445
    R&D Projects: GA MŠMT LA08032
    Institutional research plan: CEZ:AV0Z10100502
    Keywords : ATLAS * missing-energy * supersymmetry * symmetry breaking * neutralino mass * universal extra dimension * compactification * gluino mass * squark mass
    Subject RIV: BF - Elementary Particles and High Energy Physics
    Impact factor: 4.569, year: 2012
    http://arxiv.org/abs/arXiv:1209.0753

    A search for diphoton events with large missing transverse momentum has been performed using proton-proton collision data at sqrt(s) = 7 TeV recorded with the ATLAS detector, corresponding to an integrated luminosity of 4.8 fb^-1. No excess of events was observed above the Standard Model prediction and model-dependent 95% confidence level exclusion limits are set. In the context of a generalised model of gauge-mediated supersymmetry breaking with a bino-like lightest neutralino of mass above 50 GeV, gluinos (squarks) below 1.07 TeV (0.87 TeV) are excluded, while a breaking scale Lambda below 196 TeV is excluded for a minimal model of gauge-mediated supersymmetry breaking. For a specific model with one universal extra dimension, compactification scales 1/R < 1.40 TeV are excluded. These limits provide the most stringent tests of these models to date.
    Permanent Link: http://hdl.handle.net/11104/0218733

     
     
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