New magic number, N=16, near the neutron drip line

被引:533
作者
Ozawa, A
Kobayashi, T
Suzuki, T
Yoshida, K
Tanihata, I
机构
[1] RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan
[2] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan
[3] Niigata Univ, Dept Phys, Niigata 9502181, Japan
关键词
D O I
10.1103/PhysRevLett.84.5493
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have surveyed the neutron separation energies (S-n) and the interaction cross sections (sigma(1)) for the neutron-rich p-sd and the sd shell region. Very recently, both measurements reached up to the neutron drip line, or close to the drip line, for nuclei of Z less than or equal to 8. A neutron-number dependence of S-n shows clear breaks at. N = 16 near the neutron drip line (T-Z greater than or equal to 3), which shows the creation of a new magic number. A neutron-number dependence of sigma(1) shows a large increase of sigma(1) for N = 15, which supports the new magic number. The origin of the new magic number is also discussed.
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收藏
页码:5493 / 5495
页数:3
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