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OverviewThis thesis presents the measurement of the Higgs boson cross section in the diphoton decay channel. The measurement relies on proton-proton collision data at a center-of-mass energy √s = 13 TeV recorded by the ATLAS experiment at the Large Hadron Collider (LHC). The collected data correspond to the full Run-2 dataset with an integrated luminosity of 139 fb-1. The measured cross sections are used to constrain anomalous Higgs boson interactions in the Effective Field Theory (EFT) framework. The results presented in this thesis represent a reduction by a factor 2 of the different photon and jet energy scale and resolution systematic uncertainties with respect to the previous ATLAS publication. The thesis details the calibration of electron and photon energies in ATLAS, in particular the measurement of the presampler energy scale and the estimation of its systematic uncertainty. This calibration was used to perform a measurement of the Higgs boson mass in the H → γγ and H → 4l channels using the 36 fb−1 dataset. Full Product DetailsAuthor: Ahmed Tarek Abouelfadl MohamedPublisher: Springer Nature Switzerland AG Imprint: Springer Nature Switzerland AG Edition: 1st ed. 2020 Weight: 0.664kg ISBN: 9783030595159ISBN 10: 3030595153 Pages: 305 Publication Date: 13 November 2020 Audience: Professional and scholarly , Professional & Vocational Format: Hardback Publisher's Status: Active Availability: Manufactured on demand  We will order this item for you from a manufactured on demand supplier. Table of ContentsTheory.- Beyond the Standard Model : The Effective Field Theory Approach.- The LHC and the ATLAS Experiment.- Energy Calibration of the ATLAS Electromagnetic Calorimeter with 2015 and 2016 pp Collisions.- Measurement of the Higgs Boson Fiducial Inclusive and Differential Cross Sections in the Higg Channel.- Higgs Boson Cross Section Interpretation Using the EFT Approach .- Conclusions.ReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |
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