Measurements of the Decays Tau−. --]. Rho−. Nu. /sub Tau/, Tau−. --]. Pi. −. Nu. /sub Tau/ and Tau−. --]. K*-(892). Nu. /sub Tau/ Using the MARK II Detector at SPEAR.
Measurements of the Decays Tau−. --]. Rho−. Nu. /sub Tau/, Tau−. --]. Pi. −. Nu. /sub Tau/ and Tau−. --]. K*-(892). Nu. /sub Tau/ Using the MARK II Detector at SPEAR.

Author:

Publisher:

Published: 1981

Total Pages:

ISBN-13:

DOWNLOAD EBOOK

Measurements of the branching fractions for the Cabibbo favored decays tau− .-->. rho− .-->. .pi.−.nu./sub tau/ and the Cabibbo suppressed decay mode tau− .-->. K*− (892).nu./sub tau/ are presented. The energy dependence of the tautau− production cross section is obtained for the decays tau− .-->. rho−.nu./sub tau/ and these spectra agree well with the classification of the tau− as a spin-1/2 point particle. Fits to the production cross section yield a measurement of M/sub tau/ = (1787 +- 10) MeV/c2 for the tau mass. Ninety-five percent confidence upper limits for the forbidden decay tau− .-->. K*−(1430).nu./sub tau/ and the tau neutrino mass are presented.