排序方式: 共有7条查询结果,搜索用时 15 毫秒
1
1.
郑永男 周冬梅 袁大庆 M. Mihara K. Matsuta M. Fukuda T. Minamisono T. Suzuki 张锡珍 左翼 徐勇军 朱佳政 王志强 骆海龙 范平 朱升云 《中国物理 C》2008,32(Z2):174-176
The spin polarized β-emitting mirror nuclei 12B(Iπ=1+,T1/2=20.18 ms) and 12N(Iπ=1+,T1/2=11 ms) are produced by the low nuclear reactions 11B(d, p) 12B and 10B(3He,n) 12N and by selecting the projectile energy and the recoil angle. Their magnetic moments are measured by the β-NMR technique. The magnetic moments obtained after Knight shift correction are μ(12B)=1.001(17) μN and μ(12N)=0.4571(1) μN. The calculation using the existing shell model could not reproduce the measured magnetic moments for 12B and 12N simultaneously. 相似文献
2.
3.
4.
郑永男 周冬梅 袁大庆 左翼 范平 M. Mihara K. Matsuta M. Fukuda T. Minamisono T. Suzuki 徐勇军 朱佳政 王志强 骆海龙 张锡珍 朱升云 《中国物理快报》2010,(2):58-60
Magnetic moments of the A=12 unstable mirror pair nuclides 12B and 12N have been measured by the β-NMR technique. The experimentally measured magnetic moments are μ(12B)=1.001(17)μN and μ(12N)=0.4571(1)μN. The improved shell model using an SFO Hamiltonian with enhanced spin-isospin monopole proton-neutron interaction and modified single-particle energies is employed to calculate the magnetic moments of 12B and 12N. The calculation yields μ (12B)=0.929μN and μ(12N)=0.452μN and has produced a new magic number 6 for the short-lived unstable mirror pair nuclides 12B and 12N. 相似文献
5.
6.
周冬梅郑永男 朱佳政徐勇军杜恩鹏 王志强骆海龙袁大庆 容超凡M.Mihara M.Fukuda K.Matsuta T.Minamisono 朱升云 《中国物理快报》2003,20(10):1698-1701
The β-NMR (nuclear magnetic resonance) and β-NQR (nuclear quadrupole resonance) technique and its ex-perimental set-up have been developed for the first time in China. The lifetime, magnetic moment and spin polarization of ^12B were determ/ned. The experimental results show the reliability of this newly developed β-NMR and β-NQR set-up. 相似文献
7.
1