Nuclear Structure and Magnetic Moment of the Unstable 12B-12N Mirror Pair

• 作者: K. Matsuta M. Fukuda M. Mihara T. Minamisono T. Suzuki 周冬梅 左翼 张锡珍 徐勇军 朱佳政 朱升云 王志强 范平 袁大庆 郑永男 骆海龙
• 来源期刊: 中国物理快报(英文版)
• 学科: 物理学
• 关键词: 不稳定 N型 磁矩 核结构 配对 核磁共振技术 单粒子能量 实验测量
• 年，卷（期）: 2010,（2）
• 页码范围: 58-60
• 页数: 3页
• 分类号: O441 TQ325.14
• 语种: 英文

摘要

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.