Spontaneous fission of superheavy nuclei

被引：6

作者：

Gherghescu, R. A. ^{[1
]}

Poenaru, D. N. ^{[1
]}

机构：

[1] Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH, Magurele 077125, Romania

来源：

PRAMANA-JOURNAL OF PHYSICS | 2015年 / 85卷 / 03期

关键词：

Cluster decay; alpha decay; spontaneous fission; lifetimes; ENERGIES; MASSES;

D O I：

10.1007/s12043-015-1059-8

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

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 (282,292)120 nuclei.

引用

页码：439 / 446

页数：8

共 8 条

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