Interaction potential and fusion of a halo nucleus
Interaction potential and fusion of a halo nucleus
复制标题
晕核的相互作用势和融合
DOI：
10.1016/0370-2693(91)90007-d
复制
发表时间：
1991
影响因子：
4.4
通讯作者：
H. Sagawa
中科院分区：
文献类型：
--
作者：
N. Takigawa;H. Sagawa
利用M3Y力的双重折叠方法研究了丰中子核散射的相互作用势。结果表明，当价中子的分离能小到足以形成类似于11Li核的中子晕时，势垒高度显著降低。一个简单的模型计算的融合截面，其中考虑到现实的相互作用势和耦合的平移运动的软偶极模式的激发晕核，结果表明，由于熔合势垒的降低和平移运动与软模的耦合，晕核的熔合截面在低能时急剧增强。与中子晕相关的激发。
The interaction potential for the scattering of a neutron-rich nucleus is studied using the double folding procedure of the M3Y force. It is shown that the height of the potential barrier considerably decreases when the separation energy of the valence neutrons becomes small enough to develop a neutron halo similarly to the11Li nucleus. A simple model calculation of the fusion cross section, which takes into account the realistic interaction potential and the coupling of the translational motion to a soft dipole mode of excitation of the halo nucleus, is then performed to show that the fusion cross section of a halo nucleus is drastically enhanced at low energies because of the lowering of the fusion barrier and the coupling of the translational motion to soft modes of excitation associated with the neutron halo.