基于折叠势的两势方法系统研究质子放射性（英文）  

Systematic Study of Proton Radioactivity Based on Two-potential Approach with Folding Potentials

作　　者：陈玖龙 程俊皓 邓军刚 李小华[1,2] CHEN Jiulong;CHENG Junhao;DENG Jungang;LI Xiaohua(School of Nuclear Science and Technology,University of South China,Hengyang 421001,Hunan,China;Key Laboratory of Low Dimensional Quantum Structures and Quantum Control,Hunan Normal University,Changsha 410081,China)

机构地区：[1]南华大学核科学技术学院,湖南衡阳421001 [2]湖南师范大学低维量子结构与调控教育部重点实验室,长沙410081

出　　处：《原子核物理评论》2018年第3期257-263,共7页Nuclear Physics Review

基　　金：National Natural Science Foundation of China(11205083,11505100);Construct Program of the Key Discipline in Hunan Province,Research Foundation of Education Bureau of Hunan Province,China(15A159);Natural Science Foundation of Hunan Province,China(2015JJ3103,2015JJ2121);Innovation Group of Nuclear and Particle Physics in USC;Shandong Province Natural Science Foundation,China(ZR2015AQ007)~~

摘　　要：基于两势方法系统地研究了质子数51Z83质子放射性核素的衰变半衰期。总的质子–子核相互作用势包括:通过单折叠子核密度和DDM3Y有效相互作用得到的微观核势,通过单折叠子核电荷密度和质子-质子库仑相互作用得到的真实库仑势以及离心势。同时,预测了同一区域16个核的质子放射性半衰期,并且预测的质子放射性半衰期在4.11倍的范围内。此外,还研究了质子放射性的Geiger–Nuttall定律。结果表明,Geiger–Nuttall定律可以用来描述角动量相同的同位素的质子放射性。In the present work, we systematically study the half–lives of proton radioactivity for 51 Z 83 nuclei within the two–potential approach. The total emitted proton–daughter nucleus interaction potential is composed of the microscopic nuclear potential obtained by single folding the density of the daughter nucleus with the DDM3 Y effective interaction, the realistic Coulomb potential obtained by single folding the charge density of the daughter nucleus with the proton–proton Coulomb interaction and the centrifugal potential. We extend our study to predict proton radioactivity half–lives of 16 nuclei in the same region within a factor of 4.11. In addition, the Geiger–Nuttall law for proton radioactivity is researched. The results indicate that the Geiger–Nuttall law can be used to describe the proton radioactivity isotopes with same angular momentum.

关 键 词：质子放射性 两势方法 折叠势 Geiger–Nuttall定律 

分 类 号：O571.3[理学—粒子物理与原子核物理]