Half-Lives of Proton Emitters With a Deformed Density-Dependent Model  

作　　者：钱以斌 任中洲 倪冬冬 圣宗强 

机构地区：[1]Department of Physcis, Nanjing University, Nanjing 210093 [2]Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000 [3]Kavli Institute for Theoretical Physics China, Beijing 100190

出　　处：《Chinese Physics Letters》2010年第11期35-38,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, 10775068, 10735010 and 1095072, the National Basic Research Program of China under Grant Nos 2007CB815004 and 2010CB327803, Knowledge Innovation Project of Chinese Academy of Sciences under Grant No KJCX2-SW-N02, and the Specialized Research Fund for the Doctoral Program of Higher Education （SRFDP） under Grant No 20070284016.

摘　　要：Half-lives of proton radioactivity are investigated with a deformed density-dependent model. The single folding potential which is dependent on deformation and orientation is employed to calculate the proton decay width through the deformed potential barrier. In addition, the spectroscopic factor is taken into account in the calculation, which is obtained in the relativistic mean field theory with NL3. The calculated results of semi-spherical nuclei are found to be in good agreement with the experimental data, and the results of well-deformed nuclei are also satisfactory. Moreover, a formula for the spherical proton emission half-life based on the Gamow quantum tunneling theory is presented.Half-lives of proton radioactivity are investigated with a deformed density-dependent model. The single folding potential which is dependent on deformation and orientation is employed to calculate the proton decay width through the deformed potential barrier. In addition, the spectroscopic factor is taken into account in the calculation, which is obtained in the relativistic mean field theory with NL3. The calculated results of semi-spherical nuclei are found to be in good agreement with the experimental data, and the results of well-deformed nuclei are also satisfactory. Moreover, a formula for the spherical proton emission half-life based on the Gamow quantum tunneling theory is presented.

关 键 词：Nuclear physics 

分 类 号：O571.6[理学—粒子物理与原子核物理] O212.1[理学—物理]