CONFIGURATION OF THE 2-NEUTRON HALO OF LI-11 AND GAMOW-TELLER TRANSITION

被引:40
作者
SUZUKI, T
OTSUKA, T
机构
[1] UNIV TOKYO, DEPT PHYS, TOKYO 113, JAPAN
[2] RIKEN, WAKO, SAITAMA 351, JAPAN
来源
PHYSICAL REVIEW C | 1994年 / 50卷 / 02期
关键词
D O I
10.1103/PhysRevC.50.R555
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
Effects of the halo as well as meson exchange currents (MEC) are studied for the Gamow-Teller (GT) beta transition Li-11(3/2-)-->Be-11(1/2-,0.32 MeV). They are found to be important to reduce transition matrix elements and remedy deviations from the observed logft value of the GT transition. This GT transition is shown to play an indispensable role in identifying the structure of two-neutron halo of Li-11. It is indicated that the two neutrons forming the halo consist of the p1/2(2) configuration with 60-70 % probability.
引用
收藏
页码:R555 / R558
页数:4
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