Relative yields, conservation laws, and Coulomb energy in medium-energy heavy-ion collisions

We use a model of medium-energy heavy-ion collisions based on the principle of minimum information to calculate relative yield from heavy-ion collisions. The model allows for the formation of excited fragments and uses a mean-field prescription for the Coulomb interaction among fragments. We find that the yields are strongly temperature dependent and that most important factors in determining this dependence are conservation of baryon number and charge, and the intrinsic excitation energy of the fragments. We do not find it necessary to include the Coulomb energy in order to produce a minimum in the yields. (orig.)