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Title: Standard Model Higgs boson analysis via associated top production and hadronic decay using the ATLAS detector at the CERN LHC
Author: Shaw, Christian Alexander
ISNI:       0000 0001 3400 3558
Awarding Body: University of Glasgow
Current Institution: University of Glasgow
Date of Award: 2007
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A search for the Higgs boson using the ATLAS detector at the Large Hadron Collider is outlined. The channel is associated Higgs boson production ttH and subsequent decay via H → bb for a Higgs mass of 110 - 130 GeV. The major backgrounds ttbb and ttjj are simulated with matrix element generators, at leading order and next to leading order respectively. A cuts based analysis is used to maximise significance, however K-factors are not used. A comparison is also made between results from the cone (with radius 0.4) and kT (with R parameter 0.45) jet reconstruction algorithms. For the cone algorithm, significances of 2.4, 1.5 and 1.0 were found for Higgs masses 110, 120 and 130 GeV, respectively. For the kT algorithm, significances of 2.4, 1.6 and 1.1 were found for Higgs masses 110, 120 and 130 GeV, respectively. The quoted significances are for an integrated luminosity of 30 fb[-1].
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available