Effect of differences in proton and neutron density distributions on fission barriers

被引：30
作者：
Berger, JF
Pomorski, K
机构：
[1] CEA, Serv Phys Nucl, F-91680 Bruyeres Le Chatel, France
[2] Marie Curie Sklodowska Univ, Dept Theoret Phys, Lublin, Poland
来源：
PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 01期
关键词：
D O I：
10.1103/PhysRevLett.85.30
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The neutron and proton density distributions obtained in constrained Hartree-Fock-Bogolyubov calculations with the Go;my force along the fission paths of Th-232, U-236, U-238, and Pu-240 are analyzed. Significant differences in the multipole deformations of neutron and proton densities are found. The effect on potential energy surfaces and on barrier heights is studied under an additional constraint by imposing similar spatial distributions to neutrons and protons, as assumed in macroscopic-microscopic models.
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页码：30 / 33
页数：4
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