Shell model calculations for the allowed Gamow-Teller β-decays of light nuclei  

作　　者：LI HanTao REN ZhongZhou 

机构地区：[1]Department of Physics and Key Laboratory of Modern Acoustics,Institute of Acoustics,Nanjing University [2]Joint Center of Nuclear Science and Technology,Nanjing University [3]Center of Theoretical Nuclear Physics,National Laboratory of Heavy-Ion Accelerator

出　　处：《Science China(Physics,Mechanics & Astronomy)》2014年第6期1005-1012,共8页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 11035001,11375086,11105079 and 10975072);the National Major State Basic Research and Development of China (Grant Nos. 2013CB834400 and 2010CB327803);the Chinese Academy of Sciences Knowledge Innovation Project (Grant No. KJCX2-SW-N02);the Research Fund of Doctoral Point (RFDP) (Grant No. 20100091110028);the Science and Technology Development Fund of Macao (Grant No. 068/2011/A)

摘　　要：The allowed Gamow-Teller β-decay information of Li, Be, B, C, and N isotopes under the flame work of nuclear shell model is calculated herein. Theoretical results of Q values, half-lives, excitation energies, log ft values, branching fractions, and β-delayed proton/neutron emission probabilities are tabulated and compared with experimental data. The deviations from the observations are also analyzed. The llBe nucleus is well known for its anomaly ground state Jπ=1/2＋. Thus, we compared the theoretical energy levels with the experimental data and the agreements for low excitation states are consistent. The quenching factor is also evaluated and discussed.The allowed Gamow-Teller β-decay information of Li,Be,B,C,and N isotopes under the frame work of nuclear shell model is calculated herein.Theoretical results of Q values,half-lives,excitation energies,log ft values,branching fractions,and β-delayed proton/neutron emission probabilities are tabulated and compared with experimental data.The deviations from the observations are also analyzed.The 11Be nucleus is well known for its anomaly ground state Jπ=1/2+.Thus,we compared the theoretical energy levels with the experimental data and the agreements for low excitation states are consistent.The quenching factor is also evaluated and discussed.

关 键 词：light nuclei Gamow-Teller β-decay nuclear shell model 

分 类 号：O571.32[理学—粒子物理与原子核物理]