Recherche de déviations au Modèle Standard dans les processus de grande énergie transverse sur le collisionneur électron-proton HERA

Abstract : In this thesis, an exhaustive analysis of various topologies in high transverse energy events observed at the electron-proton collider HERA is presented. The whole data set accumulated by the Hl experiment between 1994 and 2000, corresponding to an integrated luminosity of 118.3 pb-1 has been used.
First of all, we contributed to the development of a new object oriented analysis fraimework, with main emphasis on the implementation of hadron and hadronic jet reconstruction algorithms. This environment, now a standard tool for the HERA II phase, has been used and evaluated within the scope of our subject.
The studied events gather 24 topologies for which transverse momenta distributions are systematically studied. A good overall agreement with the Standard Model is observed, except in some isolated lepton channels, where atypical events have already been reported. The comparison to the Standard Model is quantified by using a statistical method developped for this occasion.
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Submitted on : Friday, January 30, 2004 - 10:19:49 AM
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  • HAL Id : tel-00004412, version 1

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Matti Peez. Recherche de déviations au Modèle Standard dans les processus de grande énergie transverse sur le collisionneur électron-proton HERA. Physique des Hautes Energies - Expérience [hep-ex]. Université de la Méditerranée - Aix-Marseille II, 2003. Français. ⟨tel-00004412⟩

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