COULOMB BREAKUP MECHANISM OF NEUTRON DRIP-LINE NUCLEI

被引:62
作者
KIDO, T [1 ]
YABANA, K [1 ]
SUZUKI, Y [1 ]
机构
[1] NIIGATA UNIV, DEPT PHYS, NIIGATA 95021, JAPAN
来源
PHYSICAL REVIEW C | 1994年 / 50卷 / 03期
关键词
D O I
10.1103/PhysRevC.50.R1276
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The mechanism of the Coulomb breakup reaction of the projectile nuclei with neutron halo structure is investigated by the time-dependent Schrodinger equation in three-dimensional space. The time evolution of the internal wave function between the core nucleus and the halo neutron is calculated in the target Coulomb field treated as the time-dependent external field. Calculations are done for the Be-11+Pb-208 system for which an experiment has been done recently. The calculated results support the picture of free-particle breakup mechanism: Only the core nucleus is affected by the target Coulomb field, while the halo neutron moves independently. As a result, we obtain large transverse and small longitudinal difference in the relative velocity between the core and the neutron after the breakup. The origin of the longitudinal velocity difference observed experimentally is left unresolved in our approach.
引用
收藏
页码:R1276 / R1279
页数:4
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