Measurement of tau-decays involving eta-mesons

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Issue Date
1992-12Author
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
Metadata
Show full item recordAbstract
The decay tau- --> nu(tau)pi-pi0eta has been observed for the first time using the CLEO-II detector at the Cornell Electron Storage Ring. The measured branching ratio (0.17 +/- 0.02 +/- 0.02)%, agrees with the CVC (conserved vector current) prediction based on e+e- --> pi+pi-eta data. Upper limits on the branching ratios for other tau decays to final states including eta mesons are improved by an order of magnitude compared to previous measurements.
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Citation
ARTUSO, M, GOLDBERG, M.et al. Measurement of tau-decays involving eta-mesons. PHYSICAL REVIEW LETTERS. December 1992. 69(23) : 3278-3281
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