Improved Limits on Lepton-Flavor-Violating tau Decays to l phi , l rho , lK^{*}, and lK[over -bar]^{*}
Name
Aubert-2009-Improved Limits on L.pdf
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Author(s)
Zhao, M.
Yamamoto, R. K.
Sciolla, Gabriella
Henderson, Shawn Wesley
Dujmic, Denis
Fisher, Peter H
Spitznagel, Michael A
Cowan, Ray F
Alternative Title
Improved Limits on Lepton-Flavor-Violating τ Decays to ℓϕ, ℓρ, ℓK*, and ℓK̅ *
Date Issued
July 2009
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
BABAR Collaboration et al. “Improved Limits on Lepton-Flavor-Violating tau Decays to l phi , l rho , lK^{*}, and lK[over -bar]^{*}.” Physical Review Letters 103.2 (2009): 021801. © 2009 The American Physical Society.
Version
Final published version
Abstract
We search for the neutrinoless, lepton-flavor-violating tau decays τ[over-bar]→ℓ[over-bar]V[superscript 0], where ℓ is an electron or muon and V[superscript 0] is a vector meson reconstructed as ϕ→K[superscript +]K[superscript -], ρ→π[superscript +]π[superscript -], K[superscript *]→K[superscript +]π[superscript -], K[over-bar][superscript *]→K[superscript -]π[superscript +]. The analysis has been performed using 451 fb[superscript -1] of data collected at an e[superscript +]e[superscript -] center-of-mass energy near 10.58 GeV with the BABAR detector at the PEP-II storage rings. The number of events found in the data is compatible with the background expectation, and upper limits on the branching fractions are set in the range (2.6–19)×10[superscript -8] at the 90% confidence level.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.103.021801
