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Nuclear Structure and Magnetic Moment of the Unstable 12B-12N Mirror Pair |
| ZHENG Yong-Nan1, ZHOU Dong-Mei1, YUAN Da-Qing1, ZUO Yi1, FAN Ping1, M. Mihara2, K. Matsuta2, M. Fukuda2, T. Minamisono3, T. Suzuki4, XU Yong-Jun1, ZHU Jia-Zheng1, WANG Zhi-Qiang1, LUO Hai-Long1, ZHANG Xi-Zhen1, ZHU Sheng-Yun1 |
| 1China Institute of Atomic Energy, PO Box 275-50, Beijing 1024132Department of Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan3Fukui University of Technology, Fukui 910-8505, Japan4Department of Physics, College of Humanities and Sciences, Nihon University, Sakurajosui 3-25-40, Setagaya-ku, Tokyo 156, Japan |
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| Cite this article: |
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ZHENG Yong-Nan, ZHOU Dong-Mei, YUAN Da-Qing et al 2010 Chin. Phys. Lett. 27 022102 |
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Abstract 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.
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| Keywords:
21.60.Cs
21.10.Ky
27.20.+n
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Received: 20 October 2009
Published: 08 February 2010
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