Effects of Velocity-Dependent Force on the Magnetic Form Factors of Odd-Z Nuclei  

作　　者：董铁矿 任中洲 

机构地区：[1]Department of Physics, Nanjing University, Nanjing 210093 [2]Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator at Lanzhou, Lanzhou 730000

出　　处：《Chinese Physics Letters》2008年第3期884-887,共4页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10535010, 10675090 and No 10775068, the National Basic Research Programme of China under Grant No 2007CB815004, the Knowledge Innovation Project of Chinese Academy of Sciences under Grant No KJCX2-SW-N02, the Research Fund of Doctoral Point （RFDP）, Ministry of Education of China, under Grant No 20070284016.

摘　　要：We investigate the effects of the velocity-dependent force on the magnetic form factors and magnetic moments of odd-Z nuclei. The form factors are calculated with the harmonic-oscillator wavefunctions. It is found that the contributions of the velocity-dependent force manifest themselves in the very large momentum transfer region （q ≥ 4 fm^-1）. In the low and medium q region the contributions of the velocity-dependent force are very small compared with those without this force. However, in the high-q region the contributions of the velocity-dependent force are larger than the normal form factors. The diffraction structures beyond the existing experimental data are found after the contributions of the velocity-dependent force are included. The formula of the correction to the single particle magnetic moment due to the velocity-dependent force is reproduced exactly in the long-wavelength limit （q = 0） of the M1 form factor.We investigate the effects of the velocity-dependent force on the magnetic form factors and magnetic moments of odd-Z nuclei. The form factors are calculated with the harmonic-oscillator wavefunctions. It is found that the contributions of the velocity-dependent force manifest themselves in the very large momentum transfer region （q ≥ 4 fm^-1）. In the low and medium q region the contributions of the velocity-dependent force are very small compared with those without this force. However, in the high-q region the contributions of the velocity-dependent force are larger than the normal form factors. The diffraction structures beyond the existing experimental data are found after the contributions of the velocity-dependent force are included. The formula of the correction to the single particle magnetic moment due to the velocity-dependent force is reproduced exactly in the long-wavelength limit （q = 0） of the M1 form factor.

关 键 词：supernova explosion proto-neutron star shock wave 

分 类 号：O57[理学—粒子物理与原子核物理]