ISSN - 09205632, Nuclear Physics B - Proceedings Supplements, 2008, vol. 181-182, p. 311-313
Tau mass measurement at KEDR
The status of the experiment on the precise τ lepton mass measurement running at the VEPP-4M collider with the KEDR detector is reported. The mass value is evaluated from the τ+ τ- cross section behavior around the production threshold. The preliminary result based on 15.2 pb-1 of data is mτ = 1776.69-0.19 +0.17 ± 0.15 MeV. © 2008 Elsevier B.V. All rights reserved.