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Study of the Tau- to Pi- Pi+ Pi- Pi0 Nu/Tau And Tau- to Pi- Pi- Pi+ Eta Nu/Tau Decays Using the BaBar Detector [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy, 2007.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
6 pages : digital, PDF file
Additional Creators:
Stanford Linear Accelerator Center, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
The τ⁻ → π⁻π⁺π⁻ν{sub τ} and τ⁻ → π⁻π⁻π⁺ην{sub τ} decays have been studied with the BABAR detector. Preliminary branching fractions on the two modes are presented. The τ⁻ → π⁻π⁻π⁺ην{sub τ} mode is found to have a large contribution from the τ⁻ → ωπ⁻ν{sub τ} decay. The τ⁻ → π⁻π⁻π⁺ην{sub τ} decay is studied using the η → γγ mode and the τ⁻ f₁(1285)π⁻ν{sub τ} decay is seen to be the primary source of these decays. A 90% confidence level upper limit is placed on the τ⁻ → η′(958)π⁻ν{sub τ} decay which proceeds through a second-class current and is expected to be forbidden in the limit of perfect isospin symmetry.
Report Numbers:
E 1.99:slac-pub-13003
slac-pub-13003
Subject(s):
Other Subject(s):
Note:
Published through SciTech Connect.
11/14/2007.
"slac-pub-13003"
Nucl.Phys.Proc.Suppl.169:44-49,2007
Prepared for 9th International Workshop on Tau Lepton Physics (Tau06), Pisa, Italy, 19-22 Sep 2006.
Sobie, Randall.
Funding Information:
AC02-76SF00515
View MARC record | catkey: 14708370