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This thesis describes a search for standard model Higgs bosons decaying to W boson pairs in proton-anti-proton collisions at a center of mass energy of 1.96 TeV using the CDF II detector. The decay to W bosons is dominant for Higgs masses greater than about 135 GeV. The final state examined consists of two leptons and missing transverse energy from the leptonic decay of one or more W bosons. The signal production mechanisms included are gluon fusion, associated production with a W or Z boson, and vector boson fusion. Matrix element calculations and artificial neural networks are used to discriminate signal from background for Higgs masses in the range 110 ≤ M H ≤ 200 GeV. No significant excess of events is observed at any of the Higgs masses investigated. Upper limits on the standard model Higgs cross section are set at 95% confidence for each Higgs mass investigated, the most stringent limit being 1.63 times the predicted standard model cross section for a Higgs mass of 160 GeV.
| Book: | Search for standard model Higgs bosons decaying to W-boson pairs in proton-antiproton collisions at center of mass energy = 1.96 TeV. |
| Author: | Dean Andrew Hidas |
| ISBN: | 1243667273 |
| ISBN-13: | 9781243667274 |
| Binding: | Paperback |
| Publishing Date: | 2011-09-07 |
| Publisher: | ProQuest, UMI Dissertation Publishing |
| Number of Pages: | 228 |
| Language: | English |
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