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arXiv · 0807.4900

Search for Second-Class Currents in tau- -> omega pi- nu_tau

The BABAR Collaboration·B. Aubert
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Abstract

We report on an analysis of $τ^-$ decaying into $ωπ^-ν_τ$ with $ω\toπ^+π^-π^0$ using data containing nearly 320 million tau pairs collected with the BABAR detector at the PEP-II asymmetric energy $B$-Factory. We find no evidence for second-class currents and set an upper limit at 0.69% at a 90% confidence level for the ratio of second- to first-class currents.

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The BABAR Collaboration, B. Aubert. 2008-07-31. Search for Second-Class Currents in tau- -> omega pi- nu_tau. https://arxiv.org/abs/0807.4900

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