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Mesure des propriétés du boson de Higgs avec l'expérience ATLAS au LHC

Abstract : In this thesis, I show my contribution to the study of the properties of the Higgs boson. My work has consisted in combining the different searches of the Standard Model Higgs boson to measure the rate of production, decay and the couplings. For example, the overall rate of production measured with the ATLAS dectector has been measured. These measurements can also be interpreted in the constext of models beyond the standard model such that composite models or models inspired from the MSSM (hMSSM). I have also participated to the studies of the performance of a particle flow algorithm to reconstruct the jet with a large radius. My contribution to the search of a pseudoscalar Higgs boson decaying into a Z boson and a Higgs boson and the search of the standard model Higgs boson produced in association with a Z boson and decaying into a pair of b quarks are also shown.
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https://theses.hal.science/tel-01494070
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Submitted on : Wednesday, March 22, 2017 - 4:25:07 PM
Last modification on : Sunday, June 26, 2022 - 12:06:54 PM
Long-term archiving on: : Friday, June 23, 2017 - 1:52:32 PM

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  • HAL Id : tel-01494070, version 1

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IN2P3 | LAL | CNRS | STAR

Citation

David Delgove. Mesure des propriétés du boson de Higgs avec l'expérience ATLAS au LHC. Physique des Hautes Energies - Expérience [hep-ex]. Université Paris-Saclay, 2016. Français. ⟨NNT : 2016SACLS316⟩. ⟨tel-01494070⟩

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