• Citer

Deformation of nuclei as a function of angular momentum in the U(6) ⊃ SU(3) model

par Partensky, A.;Quesne, Christiane
Référence Physica. A, 114, 1-3, page (297-300)
Publication Publié, 1982-08

Article révisé par les pairs

• Détails
• Contenu

Résumé :

Moshińsky proposed recently a hybrid rotational model resulting from a comparison between the Gneuss and Greiner extension of the Bohr-Mottelson model and the interacting boson model. In this hybrid rotational model, we study the shape of nuclei by calculating the average of the expectation value of the square of the deformation parameter β with respect to the rotational states with the same angular momentum belonging to a given irreducible representation of SU(3). This work generalizes to three dimensions the corresponding analysis carried out in two dimensions by Chacón, Moshińsky, and Vanagas. We use the canonical chain of U(3) to obtain an analytical formula for the quantity studied. The overall stretching effect of the angular momentum on the shape of nuclei is demonstrated. © 1982.