Aubert, B. et al. (2009) Search for Second-Class Currents in τ-→ωπ-ντ. Physical Review Letters, 103 (4). 041802. ISSN 0031-9007

We report an analysis of τ- decaying into ωπ-ντ with ω→π+π-π0 using a data sample containing nearly 320×106τ pairs collected with the BABAR detector at the PEP-II B-Factory. We find no evidence for second-class currents, and we set an upper limit of 0.69% at 90% confidence level for the fraction of second-class currents in this decay mode.

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