Search for Second-Class Currents in τ−→ωπ−ντ

The BaBar Collaboration

doi:10.1103/PhysRevLett.103.041802

Search for Second-Class Currents in τ−→ωπ−ντ

The BaBar Collaboration

Research output: Contribution to journal › Article

Abstract

We report an analysis of τ− decaying into ωπ−ντ with ω→π+π−π0 using a data sample containing nearly 320×10 6τ 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.

Original language	English
Article number	041802
Journal	Physical Review Letters
Volume	103
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.103.041802
Publication status	Published - 22 Jul 2009

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10.1103/PhysRevLett.103.041802

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title = "Search for Second-Class Currents in τ−→ωπ−ντ",

abstract = "We report an analysis of τ− decaying into ωπ−ντ with ω→π+π−π0 using a data sample containing nearly 320×10 6τ 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.",

author = "George Lafferty and Kim Alwyn and David Bailey and Roger Barlow and Graham Jackson and Timothy West and Jong Yi and {The BaBar Collaboration}",

year = "2009",

month = jul,

day = "22",

doi = "10.1103/PhysRevLett.103.041802",

language = "English",

volume = "103",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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T1 - Search for Second-Class Currents in τ−→ωπ−ντ

AU - Lafferty, George

AU - Alwyn, Kim

AU - Bailey, David

AU - Barlow, Roger

AU - Jackson, Graham

AU - West, Timothy

AU - Yi, Jong

AU - The BaBar Collaboration

PY - 2009/7/22

Y1 - 2009/7/22

N2 - We report an analysis of τ− decaying into ωπ−ντ with ω→π+π−π0 using a data sample containing nearly 320×10 6τ 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.

AB - We report an analysis of τ− decaying into ωπ−ντ with ω→π+π−π0 using a data sample containing nearly 320×10 6τ 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.

U2 - 10.1103/PhysRevLett.103.041802

DO - 10.1103/PhysRevLett.103.041802

M3 - Article

SN - 0031-9007

VL - 103

JO - Physical Review Letters

JF - Physical Review Letters

IS - 4

M1 - 041802

ER -

Search for Second-Class Currents in τ−→ωπ−ντ

Abstract

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