Probing the halo structure of 19,17,15C and 14B

被引：170

作者：

Bazin, D ^{[1
]}

Benenson, W ^{[1
]}

Brown, BA ^{[1
]}

Brown, J ^{[1
]}

Davids, B ^{[1
]}

Fauerbach, M ^{[1
]}

Hansen, PG ^{[1
]}

Mantica, P ^{[1
]}

Morrissey, DJ ^{[1
]}

Powell, CF ^{[1
]}

Sherrill, BM ^{[1
]}

Steiner, M ^{[1
]}

机构：

[1] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

来源：

PHYSICAL REVIEW C | 1998年 / 57卷 / 05期

关键词：

D O I：

10.1103/PhysRevC.57.2156

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：

We have measured the parallel momentum distributions of outcoming fragments in the one-neutron breakup of the odd-mass carbon isotopes C-19,C-17,C-15 and B-14. Owing to their low neutron separation energies,the study of these nuclei is of particular interest regarding the appearance of the halo phenomenon. Discrepancies between experiment and theory observed for C-15 and B-14 indicate that their halos are not as prominent as in Be-11 or Li-11, and that core excitations start playing a role in the breakup mechanism. In C-17 the halo appears hindered by a d-wave neutron ground state configuration. Finally, the data on C-19 suggests an s-wave neutron around the 2(+) excited state in C-18. [S0556-2813(98)00805-X].

引用

页码：2156 / 2164

页数：9

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