Three-body Coulomb breakup of 11Li in the complex scaling method

被引:45
|
作者
Myo, T [1 ]
Aoyama, S
Kato, K
Ikeda, K
机构
[1] Osaka Univ, RCNP, Osaka 5670047, Japan
[2] Kitami Inst Technol, Informat Proc Ctr, Kitami, Hokkaido 0908507, Japan
[3] Hokkaido Univ, Div Phys, Grad Sch Sci, Sapporo, Hokkaido 0600810, Japan
[4] RIKEN, RI Beam Sci Lab, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
关键词
D O I
10.1016/j.physletb.2003.10.011
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Coulomb breakup strengths of Li-11 into a three-body Li-9 + n + n system are studied in the complex scaling method. We decompose the transition strengths into the contributions from three-body resonances, two-body "Li-10 + n" and three-body "Li-9 + n + n" continuum states. In the calculated results, we cannot find the dipole resonances with a sharp decay width in Li-11. There is a low energy enhancement in the breakup strength, which is produced by both the two- and three-body continuum states. The enhancement given by the three-body continuum states is found to have a strong connection to the halo structure of Li-11. The calculated breakup strength distribution is compared with the experimental data from MSU, RIKEN and GSI. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:281 / 288
页数:8
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