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ISSN - 09205632, Nuclear Physics B - Proceedings Supplements, 2011, vol. 218, p. 231-236

Decays τ-→η(η′)π-π0 ντ and CVC

Cherepanov V., Eidelman S.

We use experimental data on e+e-→ηπ+π- and τ-→ηπ-π0ν τ to test conservation of vector current (CVC) by comparing the predicted hadronic spectrum and branching fraction with the τ decay data. Based on the corresponding e+e- data and CVC, we also calculate the branching fraction of τ-→η′π-π0ν τ decay. © 2011.