Search for Second-Class Currents in τωπντ

B. Aubert et al. (The BABAR Collaboration)
Phys. Rev. Lett. 103, 041802 – Published 22 July 2009

Abstract

We report an analysis of τ decaying into ωπντ with ωπ+ππ0 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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  • Received 20 April 2009

DOI:https://doi.org/10.1103/PhysRevLett.103.041802

©2009 American Physical Society

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Vol. 103, Iss. 4 — 24 July 2009

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