Measurement of the mass of the $τ$-lepton and an upper limit on the mass difference between $τ^+$ and $τ^-$
| dc.creator | The Belle Collaboration | |
| dc.creator | Belous, K. | |
| dc.creator | Shapkin, M. | |
| dc.creator | Sokolov, A. | |
| dc.date | 2006-08-17 | |
| dc.date | 2007-02-02 | |
| dc.date.accessioned | 2026-07-07T11:58:16Z | |
| dc.date.available | 2026-07-07T11:58:16Z | |
| dc.description | The mass of the $τ$ lepton has been measured in the decay mode $τ\to 3πν_τ$ using a pseudomass technique. The result obtained from $414 \mathrm{fb}^{-1}$ of data collected with the Belle detector is $M_τ= (1776.61\pm 0.13 {(stat.)} \pm 0.35 {(sys.)})$ MeV/$c^2$. The upper limit on the relative mass difference between positive and negative $τ$ leptons is $|M_{τ^+}-M_{τ^-}|/M_τ < 2.8 \times 10^{-4}$ at 90% confidence level. | |
| dc.description | 9 pages, 3 figures. Submitted to Phys. Rev. Lett | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0608046 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0608046 | |
| dc.identifier | Phys.Rev.Lett.99:011801,2007 | |
| dc.identifier | doi:10.1103/PhysRevLett.99.011801 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206169 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the mass of the $τ$-lepton and an upper limit on the mass difference between $τ^+$ and $τ^-$ | |
| dc.type | text |