Search for highly excited states in 28Si

11th International Conference on Clustering Aspects of Nuclear Structure and Dynamics

Montanari, D.^1 ; Courtin, S.^1 ; Jenkins, D.G.^2 ; Diget, C.^2 ; Yavuzkanat, N.^2 ; Neveling, R.^3 ; Mira, J.P.^3 ; Nemulodi, F.^3 ; Smit, F.D.^3 ; Usman, I.^3 ; Papka, P.^4 ; Swartz, J.A.^4 ; Van Zyl, J.J.^4 ; Orce, N.^5

IPHC, University of Strasbourg, CNRS-IN2P3, Strasbourg

67000, France^1

Department of Physics, University of York, YORK

YO10 5DD, United Kingdom^2

IThemba LABS, National Research Foundation, PO Box 722, Somerset West

7129, South Africa^3

Department of Physics, University of Stellenbosch, Stellenbosch

7602, South Africa^4

Department of Physics, University of Western Cape, Bellville

7535, South Africa^5

关键词: Cluster structure;    Experimental determination;    Highly excited state;    Nuclear structure;    Super-deformation;    Superdeformed band;    Superdeformed state;    Theoretical calculations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/863/1/012051/pdf
DOI  :  10.1088/1742-6596/863/1/012051

来源: IOP

【 摘 要 】

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 and40Ca. 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.