Measurement of Higgs Boson Production Cross Sections in the Diphoton Channel : with the full ATLAS Run-2 Data and Constraints on Anomalous Higgs Boson Interactions / by Ahmed Tarek Abouelfadl Mohamed

By:

Tarek Abouelfadl Mohamed, Ahmed [VerfasserIn]

Resource type: Ressourcentyp: Buch (Online)Book (Online)Language: English Series: Springer Theses, Recognizing Outstanding Ph.D. ResearchPublisher: Cham : Springer International Publishing, 2020Publisher: Cham : Imprint: Springer, 2020Edition: 1st ed. 2020Description: 1 Online-Ressource(XXIV, 305 p. 207 illus., 183 illus. in color.)ISBN:

9783030595166

Subject(s):

Additional physical formats: 9783030595159 | 9783030595173 | 9783030595180 | Erscheint auch als: 9783030595159 Druck-Ausgabe | Erscheint auch als: 9783030595173 Druck-Ausgabe | Erscheint auch als: 9783030595180 Druck-AusgabeDOI: DOI: 10.1007/978-3-030-59516-6Online resources:

Summary: Theory -- 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.Summary: This 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.PPN: PPN: 174157403XPackage identifier: Produktsigel: ZDB-2-PHA | ZDB-2-SEB | ZDB-2-SXP

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