| Magnetic moment measurements of mirror nuclei 12B and 12N |
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| 作者姓名： | 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 |
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| 作者单位： | 1 China Institute of Atomic Energy, Beijing 102413, China;2 Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan;3 Fukui University of Technology, Fukui 910-8505, Japan;4 Department of Physics, College of Humanities and Sciences, Nihon University, Sakurajosui 3-25-40, Setagaya-ku, Tokyo 156, Japan |
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| 摘 要： | 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.
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| 关 键 词： | β-emitting mirror nuclei 12B and 12N spin polarization β-NMR nuclear magnetic moment |
| 收稿时间： | 2008-7-17 |
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