  Collisional processes in ultrarelativistic N=1 SUSY QED plasma are studied
and compared to those in an electromagnetic plasma of electrons, positrons and
photons. Cross sections of all binary interactions which occur in the
supersymmetric plasma at the order of e^4 are computed. Some processes, in
particular the Compton scattering on selectrons, appear to be independent of
momentum transfer and thus they are qualitatively different from processes in
an electromagnetic plasma. It suggests that transport properties of the SUSY
plasma are different than those of its non-supersymmetric counterpart. Energy
loss and momentum broadening of a particle traversing the supersymmetric plasma
are discussed in detail and the characteristics are shown to be surprisingly
similar to those of QED plasma.
