  We performed a systematic study of the formation of fragments with different
mass ranges in 197Au+197Au collisions at incident energies between 20 - 1000
MeV/nucleon and at impact para- meter between ^b = 0-0.98. The aim of present
study is to understand the complex dependence of fragment production on
incident energy and impact parameter. Our results clearly indicate that the QMD
simulations of 197Au+197Au predict different behavior for different mass ranges
than for IMF's with a change in incident energy and impact parameter. All
charge yields can be parameterized by a power law and no signal of liquid-gas
phase transition is seen as no unique dependence of tau on impact parameter is
seen.
