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arXiv · hep-ex/9701012

Tau Neutrino Helicity from $h^{\pm}$ Energy Correlations

T. Coan·CLEO Collaboration
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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.

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T. Coan, CLEO Collaboration. 1997-01-22. Tau Neutrino Helicity from $h^{\pm}$ Energy Correlations. https://doi.org/10.1103/physrevd.55.7291

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