ALEPH Collaboration, The and Barate, R. and Betteridge, Andrew and Bowdery, Christopher and Colrain, Paul and Finch, Alexander and Foster, Frank and Hughes, Gareth and Jones, Roger and Sloan, Terence and Williams, Mark (1998) An upper limit on the tau-neutrino mass from three-prong and five-prong tau decays. European Physical Journal C: Particles and Fields, 2 (3). pp. 395-406. ISSN 1434-6044
Full text not available from this repository.Abstract
A bound on the tau neutrino mass is established using the data collected from 1991 to 1995 at s√≃mZ with the ALEPH detector. Two separate limits are derived by fitting the distribution of visible energy vs invariant mass in τ−→2π−π+ντ and τ−→3π−2π+(π0)ντ decays. The two results are combined to obtain a 95% confidence level upper limit of 18.2 MeV/c 2 on the mass of the tau neutrino.