Abstract

Abstract We discuss a statistical mechanism for the production of pions and hard photons in medium-energy heavy-ion collisions, through the formation and decay of a fireball. The characteristics of the hot source (cross section, number of nucleons, excitation energy, velocity) are substantially affected by low-energy effects, like Pauli blocking and one-body dissipation. The results show that this picture is clearly in competition with other mechanisms. Moreover we have a full description of each event suitable for coincidence predictions.

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