A Measurement of the tau->electron Branching Ratio
| dc.creator | The OPAL Collaboration | |
| dc.creator | al, G. Abbiendi et | |
| dc.date | 1998-12-14 | |
| dc.date.accessioned | 2026-07-07T12:02:27Z | |
| dc.date.available | 2026-07-07T12:02:27Z | |
| dc.description | The branching ratio for the decay tau->e nue nutau has been measured using Z0 decay data collected by the OPAL experiment at LEP. In total 33073 tau->e nue nutau candidates were identified from a sample of 186197 selected tau decays, giving a branching ratio of 17.81 +- 0.09(stat) +_ 0.06(sys)%. This result is combined with other measurements to test e-mu and mu-tau universality in charged-current weak interactions. Additionally, the strong coupling constant alpha_s has been extracted and evolved to the Z0 mass scale, giving alpha_s = 0.1204 +- 0.0011(exp) +- 0.0019(theory). | |
| dc.description | 16 pages, LaTeX, 5 eps figs included, submitted to Physics Letters B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9812017 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9812017 | |
| dc.identifier | Phys.Lett.B447:134-146,1999 | |
| dc.identifier | doi:10.1016/S0370-2693(98)01553-6 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207446 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | A Measurement of the tau->electron Branching Ratio | |
| dc.type | text |