Abstract
The theoretical and experimental determination of superdeformed states in nuclei in the mass region A≤40 has been since a long time one of the major challenges of nuclear structure studies. Despite the considerable experimental and theoretical work dedicated to this topic, up to now superdeformed bands have been found in only two nuclei, 36Ar and 40Ca. While the experimental signature of the superdeformed nature of those states is irrefutable, their theoretical interpretation is still uncertain. In particular, it is not clear whether clusterisation is responsible of the onset of superdeformation. For this reason, we wanted to investigate an even lighter system, 28Si, where a number of theoretical calculations predict the presence of superdeformation as an effect of the cluster structure of the nucleus.
Highlights
The experimental and theoretical study of superdeformation (SD) in lighter nuclei (A≤40) has been at the focus of the interest for decades and still represents one of the most important topics of nuclear structure
Despite the considerable experimental efforts done in the past, the presence of SD bands has been only recently observed in this mass region for 36Ar [4] and 40Ca [5]
Under a theoretical point of view, superdeformation in these nuclei has been described by theoretical models in terms of particle-hole shell model excitations [4, 5, 6], cranked SkyrmeHartree-Fock theory [7] and alpha-clustering configurations by using the Antisymmetrized Molecular Dynamics (AMD) [8, 9, 10]
Summary
- A systematic study of the superdeformation of Pb isotopes with relativistic mean field theory* Guo Jian-You, Sheng Zong-Qiang and Fang Xiang-Zheng. - Triaxial Superdeformed Band and Its Formation Mechanism inOdd–Odd Nucleus 168Lu Tu Ya, Yu Shao-Ying, Chen Yong-Shou et al. This content was downloaded from IP address 144.32.224.57 on 27/09/2017 at 10:09. 11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics
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