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An upper limit on the tau-neutrino mass from three-prong and five-prong tau decays

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

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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.

Item Type: Article
Journal or Publication Title: European Physical Journal C: Particles and Fields
Subjects:
Departments: Faculty of Science and Technology > Physics
ID Code: 64000
Deposited By: ep_importer_pure
Deposited On: 15 May 2013 11:42
Refereed?: Yes
Published?: Published
Last Modified: 10 Oct 2017 18:02
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/64000

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