A Measurement of the tau -> mu nu nu Branching Ratio
| dc.creator | The OPAL collaboration | |
| dc.creator | Abbiendi, G. | |
| dc.date | 2002-11-27 | |
| dc.date.accessioned | 2026-07-07T11:46:37Z | |
| dc.date.available | 2026-07-07T11:46:37Z | |
| dc.description | The tau -> mu nu nu 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(tau -> mu nu nu) = 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 gmu/ge=1.0005+-0.0044 and gt/ge=1.0031+-0.0048, in good agreement with the Standard Model prediction of unity. A value for the Michel parameter eta = 0.004 +- 0.037 has also been determined and used to find a limit for the mass of the charged Higgs boson mH+- > 1.25 tan beta, in the Minimal Supersymmetric Standard Model. | |
| dc.description | 19 pages, 5 figures, Submitted to Phys. Letts B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0211066 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0211066 | |
| dc.identifier | Phys.Lett.B551:35-48,2003 | |
| dc.identifier | doi:10.1016/S0370-2693(02)03020-4 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202287 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | A Measurement of the tau -> mu nu nu Branching Ratio | |
| dc.type | text |