Limit on the tau neutrino mass

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Issue Date
1993-06Author
Ammar, Raymond G.
Ball, S.
Baringer, Philip S.
Coppage, Don
Copty, N.
Davis, Robin E. P.
Hancock, N.
Kelly, M.
Kwak, Nowhan
Lam, H.
Publisher
AMERICAN PHYSICAL SOC
Type
Article
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Show full item recordAbstract
A limit on the tau neutrino mass M(nu)tau is obtained from a study of tau decays in the reaction e+e- --> tau+tau- at center-of-mass energies is similar to 10.6 GeV. The result is based on an end-point analysis of the invariant mass spectrum of the decay products in the decay modes tau- --> 3h-2h+nu(tau), and tau- --> 2h-h+2pi0nu(tau). The data sample used in this analysis contains 1.77 x 10(6) tau pairs, corresponding to an integrated luminosity of 1.92 fb-1, and is substantially larger than previous data samples used to place a limit on M(nu)tau. The limit obtained for both five-hadron modes together is 32.6 MeV at 95% C.L.
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Citation
CINABRO, D, HENDERSON, S, et al. Limit on the tau neutrino mass. PHYSICAL REVIEW LETTERS. June 1993. 70(24) : 3700-3704
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