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Search for second-class currents in τ^- → ωπ^(-)ν_τ (2009)

Abstract
We report an analysis of τ^- decaying into ωπ^(-)ν_τ with ω → π^(+)π^(-)π^0 using a data sample containing nearly 320 × 10^6 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.

Publication details
Download http://authors.library.caltech.edu/15039/1/Aubert2009p5530Phys_Rev_Lett.pdf
http://resolver.caltech.edu/CaltechAUTHORS:20090814-130900769
Publisher American Physical Society
Repository Caltech Authors (United States)
Type Article, PeerReviewed
Relation http://resolver.caltech.edu/CaltechAUTHORS:20090814-130900769
http://authors.library.caltech.edu/15039/