  Starting from the observation that soft rescattering of hard scattered
partons from the colour charged remnant plays an important role in
proton-proton collisions a similar model for soft scatterings in a quark-gluon
plasma was constructed and implemented as a Monte Carlo event generator. The
main emphasis was put on the question to what extend these soft scatterings can
contribute to the energy loss that an energetic parton suffers, when it
traverses a quark-gluon plasma. It was found that the soft scattering can
account for up to 50% of the observed energy loss.
  Furthermore, it was investigated what information present data reveal about
the general features of partonic energy loss. This study was carried out with a
Monte Carlo model that includes the full simulation of the quark-gluon plasma
but uses a more general ansatz for the energy loss which makes it possible to
emulate different scenarios like coherent gluon bremsstrahlung, scattering etc.
Unfortunately, it turned out that it is difficult to differentiate between them
so that at present no clear decision in favour of one or the other is possible.
