The angular distribution of muons or electrons produced in the supersymmetric decay of tau leptons, ${\tau }^{\mathrm{-}}$→ν${̃}_{\tau }$ν̃${¯}_l$$l^{\mathrm{-}}$, is calculated. This decay mode has the same observable final state as the ordinary leptonic decay ${\tau }^{\mathrm{-}}$→${\nu }_{\tau }$ν${¯}_l$$l^{\mathrm{-}}$ but may be distinguished from it by the differing energy and angular distribution of the final-state lepton.

• Received 10 July 1989

DOI:https://doi.org/10.1103/PhysRevD.40.3116