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arXiv · hep-ph/9412374

Polarization of $τ$ lepton from scalar tau decay as a probe of neutralino mixing

Mihoko M. Nojiri
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Abstract

The $τ$ lepton arising from the scalar tau ($\st$) decay is naturally polarized. $\ptau$ depends on the left--right mixing of the $\st$ and the gaugino--higgsino mixing of the neutralino. The polarization $\ptau$ could be measured from the energy distribution of the decay products of $τ$ at future $\epem$ colliders. A measurement of $\ptau$and of the $\st$ production cross section allows to determine both these mixing angles.

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Mihoko M. Nojiri. 1994-12-27. Polarization of $τ$ lepton from scalar tau decay as a probe of neutralino mixing. https://doi.org/10.1103/physrevd.51.6281

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