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http://bura.brunel.ac.uk/handle/2438/7618
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DC Field | Value | Language |
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dc.contributor.advisor | Hobson, PR | - |
dc.contributor.author | Martin, William Patrick | - |
dc.date.accessioned | 2013-07-29T14:41:49Z | - |
dc.date.available | 2013-07-29T14:41:49Z | - |
dc.date.issued | 2013 | - |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/7618 | - |
dc.description | This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University. | en_US |
dc.description.abstract | The first measurement of the production cross section for a single top quark in association with a W boson with the CMS experiment at the Large Hadron Collider is presented. The analysed data is from proton-proton collisions at a centre-of-mass energy of 7 TeV, corresponding to an integrated luminosity of 4.9 fb-1. The analysis focuses on the leptonic final states of the process and implements a cut-based method. The final state consists of two leptons, two neutrinos and a jet from the fragmentation of a b-quark. The primary source of background events arises from tt(overbar) production, followed by Z/gamma* processes. The observed signal has a significance of 3:5sigma and corresponds to a cross section measurement of 14:9+5:0 -5:1 (stat + syst) pb, in agreement with the Standard Model expectations. | en_US |
dc.description.sponsorship | This study is funded by the Science and Technologies Funding Council. | en_US |
dc.language.iso | en | en_US |
dc.publisher | Brunel University School of Engineering and Design PhD Theses | - |
dc.relation.uri | http://bura.brunel.ac.uk/bitstream/2438/7618/1/FulltextThesis.pdf | - |
dc.subject | Physics | en_US |
dc.subject | LHC | en_US |
dc.subject | Top quark | en_US |
dc.subject | CMS | en_US |
dc.subject | W Boson | en_US |
dc.title | Measurement of the single top tW associated production cross section at 7 TeV with 4.9 fb-1 of data in the dilepton decay channel at the LHC using the CMS detector | en_US |
dc.type | Thesis | en_US |
Appears in Collections: | Electronic and Electrical Engineering Dept of Electronic and Electrical Engineering Theses |
Files in This Item:
File | Description | Size | Format | |
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FulltextThesis.pdf | 2.86 MB | Adobe PDF | View/Open |
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