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Tau Polarizations in the Three-body Slepton Decays with Stau as the NLSP

Chih-Lung Chou·Chung-Hsien Chou
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Abstract

In the gauge-mediated supersymmetry breaking models with scalar tau as the next-to-lightest supersymmetric particle, a scalar lepton may decay dominantly into its superpartner, tau lepton, and the lightest scalar tau particle. We give detailed formulas for the three-body decay amplitudes and the polarization asymmetry of the outgoing tau lepton . We find that the tau polarizations are sensitive to the model parameters such as the stau mixing angle, the neutralino to slepton mass ratio and the neutralino mixing effect.

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Chih-Lung Chou, Chung-Hsien Chou. 2001-07-23. Tau Polarizations in the Three-body Slepton Decays with Stau as the NLSP. https://doi.org/10.1103/physrevd.64.075008

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