Supersymmetric three-jets in electron-positron annihilation

The bremsstrahlung of gluons and gluinos off quarks and squarks is studied in e⁺e^? annihilation for longitudinally polarized beams. The contribution of a given supersymmetric state is found to be 11–27% of the conventional gluon bremsstrahlung. With all supersymmetric channels open this adds up to 90–100% of the q$\text{q}$g contribution. Dalitz-plot and angular distributions are investigated. A pronounced forward-backward asymmetry is found for gluino bremsstrahlung. Characteristic features are also exhibited by the angular distribution of the normal to the event plane.