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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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Lenguaje: | eng |
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2022
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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 |