Spontaneous fission of superheavy nuclei

Pramana

D N Poenaru¹  R A Gherghescu1¹ 

[1] Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), P.O. Box MG-6, 077125, Magurele-Bucharest, Romania$$

关键词: Cluster decay;    alpha decay;    spontaneous fission;    lifetimes.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

The macroscopic–microscopic method is extended to calculate the deformation energy and penetrability for binary nuclear configurations typical for fission processes. The deformed two-centre shell model is used to obtain single-particle energy levels for the transition region of two partially overlapped daughter and emitted fragment nuclei. The macroscopic part is obtained using the Yukawa-plus-exponential potential. The microscopic shell and pairing corrections are obtained using the Strutinsky and BCS approaches and the cranking formulae yield the inertia tensor. Finally, the WKB method is used to calculate penetrabilities and spontaneous fission half-lives. Calculations are performed for the decay of 282,292120 nuclei.

【 授权许可】

Unknown