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Title: Search for Second-Class Currents in τ−→ωπ−ντ
Author: Garra Ticó, Jordi
Graugés Pous, Eugeni
BABAR Collaboration
Keywords: Física de partícules
Particle physics
Issue Date: 22-Jul-2009
Publisher: American Physical Society
Abstract: We report an analysis of τ − decaying into ω π − ν τ with ω → π + π − π 0 using a data sample containing nearly 320 × 10 6 τ 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.
Note: Reproducció del document publicat a:
It is part of: Physical Review Letters, 2009, vol. 103, num. 4, p. 041802
Related resource:
ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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