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The damping width of giant dipole resonances of cold and hot nuclei: a macroscopic model

S. F. Mughabghab·A. A. Sonzogni
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Abstract

A phenomenological macroscopic model of the Giant Dipole Resonance (GDR) damping width of cold- and hot-nuclei with ground-state spherical and near-spherical shapes is developed. The model is based on a generalized Fermi Liquid model which takes into account the nuclear surface dynamics. The temperature dependence of the GDR damping width is accounted for in terms of surface- and volume-components. Parameter-free expressions for the damping width and the effective deformation are obtained. The model is validated with GDR measurements of the following nuclides, $^{39,40}$K, $^{42}$Ca, $^{45}$Sc, $^{59,63}$Cu, $^{109-120}$Sn,$^{147}$Eu, $^{194}$Hg, and $^{208}$Pb, and is compared with the predictions of other models.

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S. F. Mughabghab, A. A. Sonzogni. 2001-09-12. The damping width of giant dipole resonances of cold and hot nuclei: a macroscopic model. https://doi.org/10.1103/physrevc.65.044620

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