Abstract

We examine the behavior of the width of the giant dipole resonance (GDR) at high excitation energies and show, based on new detailed measurements together with a reanalysis of previous experimental results, that the GDR width in Sn and nearby mass compound nuclei continues to increase up to final-state temperatures $T\ensuremath{\sim}3.2\mathrm{MeV}$. These temperatures correspond to the highest energies at which the GDR width can be extracted reliably from existing data.

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