par Heenen, Paul-Henri ;Hellemans, Veerle ;Janssens, Robert V. F.
Editeur scientifique Broglia, Ricardo;Zelevinsky, Vladimir
Référence Fifty years of nuclear BCS, World Scientific
Publication A Paraître, 2013
Partie d'ouvrage collectif
Résumé : Superdeformed bands are rotational sequences of states associated with the collective motion of a nucleus trapped in a secondary potential well of large deformation. As such, superdeformed states do not interact with the states at normal deformation over a large range of spins. They provide a unique opportunity to test nuclear models and interactions in a regime very different from that applying to normal states. In particular, in a few cases, information about pairing correlations can be readily extracted from the experimental data. These correlations also play an important role in the mechanism responsible for deexcitation of superdeformed bands to the normally deformed states.