Search for CP Violation in the Decay τ⁻ → π⁻ K_S⁰(0π⁰)ν_τ

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Search for CP Violation in the Decay τ⁻ → π⁻ K_S⁰(0π⁰)ν_τ

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title Search for CP Violation in the Decay τ⁻ → π⁻ K_S⁰(0π⁰)ν_τ
contributor.author Lees, J. P.
contributor.author Poireau, V.
contributor.author Tisserand, V.
contributor.author Garra Tico, J.
contributor.author Grauges, E.
contributor.author Martinelli, M.
contributor.author Milanes, D. A.
contributor.author Izen, Joseph M.
contributor.author Lou, Xinchou
contributor.author BaBar Collaboration
contributor.utdAuthor Lou, Xinchou
contributor.utdAuthor Izen, Joseph M.
contributor.VIAF 250674117 (Izen, JM)
description.abstract We report a search for CP violation in the decay τ⁻ → π⁻ K_S⁰ (0π⁰)ν_τ using a data set of 437×106 τ-lepton pairs, corresponding to an integrated luminosity of 476 fb⁻¹, collected with the BABAR detector at the PEP-II asymmetric-energy e⁺e⁻ 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)%.
identifier.issn 1550-7998
identifier.uri http://hdl.handle.net/10735.1/3080
identifier.bibliographicCitation Lees, J. P., V. Poireau, V. Tisserand, J. Garra Tico, et al. 2012. "Search for CP violation in the decay τ⁻ → π⁻ K_S⁰(0π⁰)ν_τ." Physical Review D - Particles, Fields, Gravitation and Cosmology 85(3), doi:10.1103/PhysRevD.85.031102
identifier.volume 85
identifier.issue 3
subject Astrophysics
subject Particle range (Nuclear physics)
subject Leptons (Nuclear physics)--Decay
date.issued 2012-02-13
publisher American Physical Society
relation.uri http://dx.doi.org/10.1103/PhysRevD.85.031102
rights © 2012 American Physical Society
language.iso en_US
source Physical Review D - Particles, Fields, Gravitation and Cosmology

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