A search for the Standard Model Higgs boson via its decay to tau leptons and W bosons at the ATLAS detector

<p>Understanding the origin or Electroweak symmetry breaking within the Standard Model was a key motivation for the construction of the Large Hadron Collider (LHC) experiment at CERN. This thesis presents a search for evidence of Higgs boson production in the 4.7 fb−1 of collision data recorde...

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Main Author: Boddy, C
Other Authors: Hays, C
Format: Thesis
Language:English
Published: 2013
Subjects:
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author Boddy, C
author2 Hays, C
author_facet Hays, C
Boddy, C
author_sort Boddy, C
collection OXFORD
description <p>Understanding the origin or Electroweak symmetry breaking within the Standard Model was a key motivation for the construction of the Large Hadron Collider (LHC) experiment at CERN. This thesis presents a search for evidence of Higgs boson production in the 4.7 fb−1 of collision data recorded at a centre-of-mass energy of 7 TeV at the ATLAS detector during 2011.</p> <p>This search is focused on signal events in which a Higgs boson is produced in the mass range 100 &lt; mH &lt; 180 GeV/c2 and subsequently decays to a pair of W bosons or a pair of tau leptons to final states with one hadronically decaying tau lepton and one light lepton. After an event selection criteria has been applied, the number of events in this data sample is consistent with the total background estimate and an upper limit is placed on the SM Higgs boson production rate at 95% confidence level. In addition, the prospects for measuring the SM Higgs coupling strength to tau leptons with the associated Higgs production channels and the full LHC dataset are also presented.</p>
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spelling oxford-uuid:abba39e7-4de1-46c5-a533-7b677ae254f22022-03-27T03:23:55ZA search for the Standard Model Higgs boson via its decay to tau leptons and W bosons at the ATLAS detectorThesishttp://purl.org/coar/resource_type/c_db06uuid:abba39e7-4de1-46c5-a533-7b677ae254f2Particle physicsEnglishOxford University Research Archive - Valet2013Boddy, CHays, C<p>Understanding the origin or Electroweak symmetry breaking within the Standard Model was a key motivation for the construction of the Large Hadron Collider (LHC) experiment at CERN. This thesis presents a search for evidence of Higgs boson production in the 4.7 fb−1 of collision data recorded at a centre-of-mass energy of 7 TeV at the ATLAS detector during 2011.</p> <p>This search is focused on signal events in which a Higgs boson is produced in the mass range 100 &lt; mH &lt; 180 GeV/c2 and subsequently decays to a pair of W bosons or a pair of tau leptons to final states with one hadronically decaying tau lepton and one light lepton. After an event selection criteria has been applied, the number of events in this data sample is consistent with the total background estimate and an upper limit is placed on the SM Higgs boson production rate at 95% confidence level. In addition, the prospects for measuring the SM Higgs coupling strength to tau leptons with the associated Higgs production channels and the full LHC dataset are also presented.</p>
spellingShingle Particle physics
Boddy, C
A search for the Standard Model Higgs boson via its decay to tau leptons and W bosons at the ATLAS detector
title A search for the Standard Model Higgs boson via its decay to tau leptons and W bosons at the ATLAS detector
title_full A search for the Standard Model Higgs boson via its decay to tau leptons and W bosons at the ATLAS detector
title_fullStr A search for the Standard Model Higgs boson via its decay to tau leptons and W bosons at the ATLAS detector
title_full_unstemmed A search for the Standard Model Higgs boson via its decay to tau leptons and W bosons at the ATLAS detector
title_short A search for the Standard Model Higgs boson via its decay to tau leptons and W bosons at the ATLAS detector
title_sort search for the standard model higgs boson via its decay to tau leptons and w bosons at the atlas detector
topic Particle physics
work_keys_str_mv AT boddyc asearchforthestandardmodelhiggsbosonviaitsdecaytotauleptonsandwbosonsattheatlasdetector
AT boddyc searchforthestandardmodelhiggsbosonviaitsdecaytotauleptonsandwbosonsattheatlasdetector