Semi-Classical Description of Giant Resonances at Finite Temperature

摘要

We present a study of the temperature dependence of the energies of isoscalar giant resonances within a semi-classical model, in the framework of the subtraction procedure of Bonche, Levit and Vautherin. This prescription allows a consistent treatment of continuum effects, which play, as we show in detail, a crucial role in the description of excited collective motions. Special attention is paid to the monopole resonance for which 3 moments of the strength function have been calculated. We find a weak temperature dependence of the studied resonance energies. (ERA citation 13:010270)