Recherche de physique au-delà du Modèle Standard dans le secteur du quark top et calibration de l’échelle en énergie des jets avec l’expérience CMS du LHC

Abstract : The first part of this thesis is dedicated to the extraction of jet energy scale corrections for the CMS experiment at the LHC. Various extraction methods are described, with a particular interest on corrections extraction using photon + jets events. These corrections are necessary for all analyses using jets and are already used by the whole collaboration. The second part presents the searches for new physics beyond the Standard Model. Many models of new physics predict new particles with enhanced coupling to the top quark, which can show up as resonances in the top-antitop invariant mass spectrum. Two separate analyses are described in this thesis, one dedicated to the search of spin 1 resonances and one dedicated to the search of spin 0 resonances, where interference effects with the Standard Model production are taken into account
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http://hal.in2p3.fr/tel-01089260
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Sébastien Brochet. Recherche de physique au-delà du Modèle Standard dans le secteur du quark top et calibration de l’échelle en énergie des jets avec l’expérience CMS du LHC. Physique des Hautes Energies - Expérience [hep-ex]. Université Claude Bernard - Lyon I, 2014. Français. ⟨NNT : 2014LYO10108⟩. ⟨tel-01089260v2⟩

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