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Probing new physics in the vector boson fusion production of Higgs bosons

This thesis reports the vector boson fusion production cross section for the Higgs boson in the H→WW∗→lνlν final state measured as a function of kinematic observables sensitive to the Higgs boson production and decay properties as well as integrated in a fiducial phase space. The analysis is perform...

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Detalles Bibliográficos
Autor principal: Chen, Jiayi
Lenguaje:eng
Publicado: 2022
Materias:
Acceso en línea:http://cds.cern.ch/record/2837282
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author Chen, Jiayi
author_facet Chen, Jiayi
author_sort Chen, Jiayi
collection CERN
description This thesis reports the vector boson fusion production cross section for the Higgs boson in the H→WW∗→lνlν final state measured as a function of kinematic observables sensitive to the Higgs boson production and decay properties as well as integrated in a fiducial phase space. The analysis is performed using the proton-proton collision data collected by the ATLAS detector in the LHC Run-2 at √s = 13 TeV center-of-mass energy, corresponding to an integrated luminosity of 139 fb−1. The data are corrected for the effects of detector inefficiency and resolution, and the measurements are compared to different state-of-the-art theoretical predictions. The observed fiducial cross section of 1.68+0.40 fb is compatible with −0.38 the Standard Model prediction at a cross section of 2.07 ± 0.04 fb. The differential cross sections are finally used to constrain anomalous CP-even and CP-odd interactions using a dimension-6 Effective Field Theory formalism.
id cern-2837282
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2022
record_format invenio
spelling cern-28372822022-11-07T21:59:28Zhttp://cds.cern.ch/record/2837282engChen, JiayiProbing new physics in the vector boson fusion production of Higgs bosonsParticle Physics - ExperimentThis thesis reports the vector boson fusion production cross section for the Higgs boson in the H→WW∗→lνlν final state measured as a function of kinematic observables sensitive to the Higgs boson production and decay properties as well as integrated in a fiducial phase space. The analysis is performed using the proton-proton collision data collected by the ATLAS detector in the LHC Run-2 at √s = 13 TeV center-of-mass energy, corresponding to an integrated luminosity of 139 fb−1. The data are corrected for the effects of detector inefficiency and resolution, and the measurements are compared to different state-of-the-art theoretical predictions. The observed fiducial cross section of 1.68+0.40 fb is compatible with −0.38 the Standard Model prediction at a cross section of 2.07 ± 0.04 fb. The differential cross sections are finally used to constrain anomalous CP-even and CP-odd interactions using a dimension-6 Effective Field Theory formalism.CERN-THESIS-2022-160oai:cds.cern.ch:28372822022-10-18T21:07:40Z
spellingShingle Particle Physics - Experiment
Chen, Jiayi
Probing new physics in the vector boson fusion production of Higgs bosons
title Probing new physics in the vector boson fusion production of Higgs bosons
title_full Probing new physics in the vector boson fusion production of Higgs bosons
title_fullStr Probing new physics in the vector boson fusion production of Higgs bosons
title_full_unstemmed Probing new physics in the vector boson fusion production of Higgs bosons
title_short Probing new physics in the vector boson fusion production of Higgs bosons
title_sort probing new physics in the vector boson fusion production of higgs bosons
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2837282
work_keys_str_mv AT chenjiayi probingnewphysicsinthevectorbosonfusionproductionofhiggsbosons