Belous, K;
Shapkin, M;
Sokolov, A;
Abe, K;
Abe, K;
Adachi, I;
Aihara, H;
... Belle Collaboration; + view all
(2007)
Measurement of the tau lepton mass and an upper limit on the mass difference between tau(+) and tau(-).
PHYS REV LETT
, 99
(1)
, Article 011801. 10.1103/PhysRevLett.99.011801.
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Abstract
The mass of the tau lepton has been measured in the decay mode tau -> 3 pi nu(tau) using a pseudomass technique. The result obtained from 414 fb(-1) of data collected with the Belle detector is M-tau=[1776.61 +/- 0.13(stat)+/- 0.35(sys)] MeV/c(2). The upper limit on the relative mass difference between positive and negative tau leptons is |M-tau(+)-M-tau(-)|/M-tau < 2.8x10(-4) at 90% confidence level.
| Type: | Article |
|---|---|
| Title: | Measurement of the tau lepton mass and an upper limit on the mass difference between tau(+) and tau(-) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.99.011801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.99.011801 |
| Language: | English |
| Additional information: | © 2007 The American Physical Society |
| Keywords: | BELLE, IDENTIFICATION, KEKB |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1308556 |
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