Abstract
Using the ARGUS detector at the DORIS II storage ring, a new measurement of the mass of the τ lepton has been obtained. An analysis of the tau pseudomass spectrum for decays of the type τ- → π-π-π+ντ finds mτ = 1776.3±2.4±1.4 MeV/c2. This result also leads to an improvement of the upper limit on the ντ mass to mντ < 31 MeV/c2 at the 95% confidence level.
| Original language | English |
|---|---|
| Pages (from-to) | 221-228 |
| Number of pages | 8 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 292 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 8 Oct 1992 |
| Externally published | Yes |
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