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Measurement of the decays tau/sup -/. -->. rho/sup -/. nu. /sub tau/ and tau/sup -/. -->. K*/sup -/(892). nu. /sub tau/ using the Mark II detector at SPEAR

Technical Report ·
DOI:https://doi.org/10.2172/7095190· OSTI ID:7095190
Measurements of the branching fractions for the Cabibbo-favored decay tau/sup -/ ..-->.. rho/sup -/..nu../sub tau/ and the Cabibbo-suppressed decay tau/sup -/ ..-->.. K*/sup -/(892)..nu../sub tau/ are presented. The energy dependence of the tau/sup +/tau/sup -/ production cross section is measured with the aid of the decay tau/sup -/ ..-->.. rho/sup -/..nu../sub tau/, which yields a measurement M/sub tau/ = (1790 +- 40) MeV. A 2 sigma upper limit for the forbidden decay tau/sup -/ ..-->.. K*/sup -/(1430)..nu../sub tau/ is also presented. 3 figures.
Research Organization:
Stanford Linear Accelerator Center, CA (USA)
OSTI ID:
7095190
Report Number(s):
SLAC-PUB-2590; CONF-800724-34
Country of Publication:
United States
Language:
English