Abstract
Experimentally, the multiplicity of the γ-rays emitted from very excited nuclei ( E ∗/ A ≥ 2 MeV, A ∼ 100 ) in the Giant Dipole Resonance (GDR) energy region is found to saturate against the prediction of standard statistical models. An interpretation in term of the costancy with temperature of the GDR spreading width is presented, pointing out open problems. It is stressed that a consistent understanding of nuclear structure properties at very high excitation energy is a prerequisite of any approach to the problem.
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