Abstract:
We calculate the production of high energy photons from
Compton and annihilation processes as well as fragmentation
off quarks in the parton cascade model. The multiple
scattering of partons is seen to lead to a substantial
production of high energy photons, which rises further when
parton multiplication due to final state radiation is
included. The photon yield is found to be proportional to
the number of collisions among the cascading partons.