Impact of nuclear structure on production of superheavy nuclei

International Symposium on Entrance Channel Effect on the Reaction Mechanism in Heavy Ion Collisions

Adamian, G.G.^1 ; Antonenko, N.V.^1 ; Bezbakh, A.N.^1 ; Shneidman, T.M.^1,2 ; Scheid, W.^3

Joint Institute for Nuclear Research, 141980 Dubna, Russia^1

Institute of Theoretical Physics, CAS, Beijing 100190, China^2

Institut für Theoretische Physik der Justus-Liebig- üniversität, D-35392 Giessen, Germany^3

关键词: Evaporation residues;    Heaviest nuclei;    Level density;    Nuclear level densities;    Nuclear structure;    Self-consistent mean field;    Shell effects;    Superheavy nuclei;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/515/1/012002/pdf
DOI  :  10.1088/1742-6596/515/1/012002

来源: IOP

【 摘 要 】

The calculations performed with the modified two-center shell model reveal quite strong shell effects at Z 120-126 and N 184 as in the self-consistent mean-field treatments. If our prediction of the structure of heaviest nuclei is correct, than one can expect the production of evaporation residues Z 120 in the reactions50Ti+249Cf and54Cr+248Cm in near future. The nuclear level densities were calculated for the nuclei of a-decay chains containing296,298,300120. The minima of the level density parameter clearly indicate the strong shell effect at Z 120.