Search for CP violation in the decay τ[superscript -]→π[superscript -]K[subscript S][superscript 0](≥0π[superscript 0])ν[subscript τ]
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Lees-2012-Search for CP violation in the decay.pdf
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Author(s)
Dujmic, Denis
Sciolla, Gabriella
Cowan, Ray F
Date Issued
February 2012
Journal
Physical Review D
Publisher
American Physical Society
Citation
J. P. Lees et al."Search for CP violation in the decay τ[superscript -]→π[superscript -]K[subscript S][superscript 0](≥0π[superscript 0])ν[subscript τ]" Physical Review D 85, 031102(R)(2012). © 2012 American Physical Society
Version
Final published version
Abstract
We report a search for CP violation in the decay τ[superscript -]→π[superscript -]K[subscript S][superscript 0](≥0π[superscript 0])ν[subscript τ] using a data set of 437×10[superscript 6] τ-lepton pairs, corresponding to an integrated luminosity of 476 fb[superscript -1], collected with the BABAR detector at the PEP-II asymmetric-energy e[superscript +]e[superscript -] storage rings. The CP-violating decay-rate asymmetry is determined to be (-0.36±0.23±0.11)% approximately 2.8 standard deviations from the standard model prediction of (0.36±0.01)%.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.85.031102
