Coulomb dissociation of 19C and its halo structure

被引：300
作者：
Nakamura, T
Fukuda, N
Kobayashi, T
Aoi, N
Iwasaki, H
Kubo, T
Mengoni, A
Notani, M
Otsu, H
Sakurai, N
Shimoura, S
Teranishi, T
Watanabe, YX
Yoneda, K
Ishihara, M
机构：
[1] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan
[2] Tohoku Univ, Dept Phys, Aoba Ku, Sendai, Miyagi 9808578, Japan
[3] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
[4] Rikkyo Univ, Dept Phys, Toshima Ku, Tokyo 1718501, Japan
来源：
PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 06期
关键词：
D O I：
10.1103/PhysRevLett.83.1112
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The extremely neutron-rich nucleus C-19 has been studied by Coulomb dissociation into C-18 + n at 67 A MeV. A large E1 strength of 0.71 +/- 0.07 e(2) fm(2) has been observed at low excitation energies. An analysis of the angular distribution of C-18 + n Center Of mass has led to a determination of the neutron separation energy of C-19 to be 530 +/- 130 keV. The El strength distribution can be well reproduced for a C-19 ground state structure with a dominant s-wave valence neutron, providing a consistent picture of the neutron halo structure of C-19.
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页码：1112 / 1115
页数：4
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