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International Workshop on Semiclassical and Phase Space Approaches to the Dynamics of the Nucleus, Aussois : France (1987)
A SEMI-CLASSICAL DESCRIPTION OF GIANT RESONANCES AT FINITE TEMPERATURE
E. Suraud1, M. Barranco, J. Treiner2
(1987)

We present a study of the temperature dependance 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 dependance of the studied resonance energies (l=0,2,3,4).
1 :  LPSC - Laboratoire de Physique Subatomique et de Cosmologie
2 :  IPNO - Institut de Physique Nucléaire d'Orsay
Physique/Articles anciens
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