A measurement of the Tau to Muon branching ratio
| dc.contributor.author | Kormos, Laura Lee | |
| dc.contributor.supervisor | Sobie, Randall J. | |
| dc.contributor.supervisor | Keeler, Richard K. | |
| dc.date.accessioned | 2018-11-16T23:26:38Z | |
| dc.date.available | 2018-11-16T23:26:38Z | |
| dc.date.copyright | 2003 | en_US |
| dc.date.issued | 2018-11-16 | |
| dc.degree.department | Department of Physics and Astronomy | |
| dc.degree.level | Doctor of Philosophy Ph.D. | en_US |
| dc.description.abstract | The Ƭ- → μ-vμvƬ branching ratio has been measured using data collected from 1990 to 1995 by the OPAL detector at the LEP collider. The resulting value of B (Ƭ- → μ-vμvƬ) = 0.1734 ± 0.0009(stat) ± 0.0006(syst) has been used in conjunction with other OPAL measurements to test lepton universality, yielding the coupling constant ratios mH± = 1.0005 ± 0.0044 and gƬ/ge = 1.0031 ± 0.0048, in good agreement with the Standard Model prediction of unity. A value for the Michel parameter η = 0.004 ± 0.037 has also been determined and used to find a limit for the mass of the charged Higgs boson, mH± > 1.28 tan β, in the Minimal Supersymmetric Standard Model. | en_US |
| dc.description.scholarlevel | Graduate | en_US |
| dc.identifier.uri | http://hdl.handle.net/1828/10321 | |
| dc.language | English | eng |
| dc.language.iso | en | en_US |
| dc.rights | Available to the World Wide Web | en_US |
| dc.subject | Branching ratios (Nuclear physics) | en_US |
| dc.subject | Leptons (Nuclear physics) | en_US |
| dc.subject | Tau leptons | en_US |
| dc.subject | Minimal supersymmetric standard model | en_US |
| dc.subject | Higgs boson | en_US |
| dc.title | A measurement of the Tau to Muon branching ratio | en_US |
| dc.type | Thesis | en_US |