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.
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.
基金
Supported by the National Natural Science Foundation of China under Grant No 10435010.
