One-proton halo in P-26 and two-proton halo in S-27

被引：87

作者：

Ren, ZZ

Chen, BQ

Ma, ZY

Xu, GG

机构：

[1] CHINA INST ATOM ENERGY, BEIJING 102413, PEOPLES R CHINA

[2] CHINA CTR ADV SCI & TECHNOL, WORLD LAB, BEIJING 100080, PEOPLES R CHINA

来源：

PHYSICAL REVIEW C | 1996年 / 53卷 / 02期

关键词：

D O I：

10.1103/PhysRevC.53.R572

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：

Proton-drip-line nuclei P-26 and S-27 are studied in the nonlinear relativistic mean-field theory. Calculations show that the mean-square radius of protons in the 2s(1/2) state is approximately 18-20 fm(2) which is abnormally large as compared with the mean-square radii of proton, neutron, and matter distributions, giving a strong evidence for proton halos in P-26 and S-27. This indicates that the size of proton halos is as large as that of neutron halos although there exists the Coulomb barrier in proton-drip-line nuclei.

引用

页码：R572 / R575

页数：4

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