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Beyond The Standard Model Higgs Physics with Photons with the CMS Detector

The experimental discovery of the Higgs boson is one of the latest successes of the Standard Model of particle physics. Although all measurements have confirmed that this newly discovered particle is the Higgs boson predicted by the Standard Model, with no deviations to suggest otherwise, the Higgs...

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Autor principal: Teixeira de Lima, Rafael
Lenguaje:eng
Publicado: 2017
Materias:
Acceso en línea:http://cds.cern.ch/record/2290218
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author Teixeira de Lima, Rafael
author_facet Teixeira de Lima, Rafael
author_sort Teixeira de Lima, Rafael
collection CERN
description The experimental discovery of the Higgs boson is one of the latest successes of the Standard Model of particle physics. Although all measurements have confirmed that this newly discovered particle is the Higgs boson predicted by the Standard Model, with no deviations to suggest otherwise, the Higgs boson can guide us to new models which modify the electroweak symmetry breaking mechanism or predict new states that couple to the Higgs. Therefore, it's paramount to directly look for modifications of our current model with the help of the recently discovered particle. In this thesis, two analyses involving beyond the Standard Model physics tied to the Higgs sector will be explored. First, looking at exotic Higgs decays, an analysis searching for the final state with photons and missing transverse energy will be presented. Then, the search for Higgs pair production, both resonantly and non-resonantly (a process predicted by the Standard Model, albeit at very low rates), in the final state with two bottom quark jets and two photons will be detailed. An important part of these results is the performance of the Compact Muon Solenoid's Electromagnetic Calorimeter, which will also be presented.
id cern-2290218
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
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spelling cern-22902182019-09-30T06:29:59Zhttp://cds.cern.ch/record/2290218engTeixeira de Lima, RafaelBeyond The Standard Model Higgs Physics with Photons with the CMS DetectorParticle Physics - ExperimentThe experimental discovery of the Higgs boson is one of the latest successes of the Standard Model of particle physics. Although all measurements have confirmed that this newly discovered particle is the Higgs boson predicted by the Standard Model, with no deviations to suggest otherwise, the Higgs boson can guide us to new models which modify the electroweak symmetry breaking mechanism or predict new states that couple to the Higgs. Therefore, it's paramount to directly look for modifications of our current model with the help of the recently discovered particle. In this thesis, two analyses involving beyond the Standard Model physics tied to the Higgs sector will be explored. First, looking at exotic Higgs decays, an analysis searching for the final state with photons and missing transverse energy will be presented. Then, the search for Higgs pair production, both resonantly and non-resonantly (a process predicted by the Standard Model, albeit at very low rates), in the final state with two bottom quark jets and two photons will be detailed. An important part of these results is the performance of the Compact Muon Solenoid's Electromagnetic Calorimeter, which will also be presented.CERN-THESIS-2017-189oai:cds.cern.ch:22902182017-10-23T11:34:11Z
spellingShingle Particle Physics - Experiment
Teixeira de Lima, Rafael
Beyond The Standard Model Higgs Physics with Photons with the CMS Detector
title Beyond The Standard Model Higgs Physics with Photons with the CMS Detector
title_full Beyond The Standard Model Higgs Physics with Photons with the CMS Detector
title_fullStr Beyond The Standard Model Higgs Physics with Photons with the CMS Detector
title_full_unstemmed Beyond The Standard Model Higgs Physics with Photons with the CMS Detector
title_short Beyond The Standard Model Higgs Physics with Photons with the CMS Detector
title_sort beyond the standard model higgs physics with photons with the cms detector
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2290218
work_keys_str_mv AT teixeiradelimarafael beyondthestandardmodelhiggsphysicswithphotonswiththecmsdetector