Tau Neutrino Helicity from $h^{\pm}$ Energy Correlations
High Energy Physics - Experiment
2010-04-08 v1
Abstract
We report a measurement of the magnitude of the tau neutrino helicity from tau-pair events taken with the CLEO detector at the CESR electron-positron storage ring. Events in which each tau undergoes the decay tau -> h nu, with h a charged pion or kaon, are analyzed for energy correlations between the daughter hadrons, yielding |xi| = 2*|h_nu| = 1.03 +/- 0.06 +/- 0.04, with the first error statistical and the second systematic.
Cite
@article{arxiv.hep-ex/9701012,
title = {Tau Neutrino Helicity from $h^{\pm}$ Energy Correlations},
author = {T. Coan and CLEO Collaboration},
journal= {arXiv preprint arXiv:hep-ex/9701012},
year = {2010}
}
Comments
11 pages, postscript file also available through http://w4.lns.cornell.edu/public/CLNS