An upper limit on the anomalous magnetic moment of the τlepton
| dc.creator | The OPAL Collaboration | |
| dc.creator | al, K. Ackerstaff et | |
| dc.date | 1998-03-22 | |
| dc.date.accessioned | 2026-07-07T12:02:20Z | |
| dc.date.available | 2026-07-07T12:02:20Z | |
| dc.description | Using radiative Z^0 -> τ^+ τ^- γevents collected with the OPAL detector at LEP at \sqrt{s}= M_Z during 1990-95, a direct study of the electromagnetic current at the τγvertex has been performed in terms of the anomalous magnetic form factor F_2 of the τlepton. The analysis is based on a data sample of 1429 e^+ e^- -> τ^+ τ^- γevents which are examined for a deviation from the expectation with F_2 = 0. From the non-observation of anomalous τ^+ τ^- γproduction a limit of -0.068 < F_2 < 0.065 is obtained. This can also be interpreted as a limit on the electric dipole form factor F_3 as -3.8 x 10^-16 e-cm < eF_3 < 3.6 x 10^-16 e-cm. The above ranges are valid at the 95% confidence level. | |
| dc.description | 20 pages, LaTeX, uses a4p.sty, 4 eps figures included, submitted to Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/hep-ex/9803020 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/9803020 | |
| dc.identifier | Phys.Lett.B431:188-198,1998 | |
| dc.identifier | doi:10.1016/S0370-2693(98)00520-6 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207406 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | An upper limit on the anomalous magnetic moment of the τlepton | |
| dc.type | text |