Jesper Roy Christiansen
Colour reconnection- Models and Tests


Recent progress on colour reconnection with in the PYTHIA framework is presented. A new model is introduced, based on the SU(3) structure of QCD and a minimization of the potential string energy. The inclusion of the epsilon structure of SU(3) gives a new baryon production mechanism and makes it possible simultaneously to describe hyperon production at bothe^{+}e^{-} and pp colliders. Finally, predictions for e^{+}e^{-} colliders, both past and potential future ones, are presented.

LU TP 15-45