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AbstractAbstract
[en] The various models that were successively developed for describing static nuclear deformations are reviewed. The properties of the nuclei in their ground state lead to the concept of ellipsoidal nuclei, the liquid drop model being intended to explain the deformations of the excited nucleus, the shell corrections explain the drawbacks of the liquid drop model and the Strutinski theory describes their effects on the fission barrier. The collective model, the deformed shell model and the unified model having been successively introduced to explain the rotational spectrum. The approximations involving infinite nuclear matter and effective interactions, and nuclear Hartree-Fock calculations are briefly outlined jointly with heavy ion excitation of yrast levels
[fr]
Les differents modeles nucleaires qui ont successivement tente de decrire les deformations statiques du noyau sont evoques. Les proprietes des noyaux dans leur etat fondamental conduisent a la notion de noyaux de forme ellipsoidale, le modele de la goutte liquide etant destine a expliquer les deformations du noyau excite, les corrections de couches rendent compte des defauts du modele de la goutte liquide et la theorie de Strutinski decrit leurs effets sur la barriere de fission. Le modele collectif, le modele en couches deforme puis le modele unifie ont successivement ete introduits pour expliquer le spectre rotationnel. Les approximations de matiere nucleaire infinie et d'interaction effective et les calculs de Hartree-Fock pour le noyau sont evoques ainsi que les experiences d'excitation de niveaux yrast par les ions lourdsOriginal Title
La forme du noyau
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Journal Article
Journal
Recherche (Paris); v. 8(78); p. 435-443
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