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Open Access item Search for Second-Class Currents in tau(-) -> omega pi(-)nu(tau)

Authors:Babar Collaboration
Azzolini, Virginia
López-March, Neus
Martínez-Vidal, Fernando
Milanés, Diego A.
Oyanguren, Arantza
Aubert, B.
Issue Date:24-Jul-2009
Publisher:American Physical Society
Citation:Physical Review Letters 103 (4): 041802 (2009)
Abstract:We report an analysis of tau(-) decaying into omega pi(-)nu(tau) with omega -> pi(+)pi(-)pi(0) using a data sample containing nearly 320 x 10(6)tau 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.
Publisher version (URL):http://dx.doi.org/ 10.1103/PhysRevLett.103.041802
URI:http://hdl.handle.net/10261/21893
ISSN:0031-9007
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Appears in Collections:(IFIC) Artículos

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