Improved Kelson-Garvey mass relations for proton-rich nuclei
Improved Kelson-Garvey mass relations for proton-rich nuclei
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DOI：
10.1103/physrevc.87.014313
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发表时间：
2013-01
影响因子：
3.1
通讯作者：
Junlong Tian;Ning Wang;Cheng Li;Jing-Jing Li-Jing
中科院分区：
文献类型：
--
作者：
Junlong Tian;Ning Wang;Cheng Li;Jing-Jing Li-Jing
从镜像核的质量差出发，提出了改进的Kelson-Garvey（ImKG）质量关系。利用该关系式可以很好地再现31个实测的7 leq Aleq 41 $和-5leq（N-Z）leq-3$丰质子核的质量，其均方根偏差为0.398 MeV，远小于Kelson-Garvey质量关系式的结果（0.502 MeV）和Isobar-Mirror质量关系式的结果（0.647 MeV）.这是因为在预测未知富质子核的质量时，ImKG质量关系中涉及了更多的参与核的质量。用ImKG质量关系对144个未知丰质子核的质量进行了预测。同时研究了这些丰质子核的单质子和双质子分离能以及双质子发射。
The improved Kelson-Garvey (ImKG) mass relations are proposed from the mass differences of mirror nuclei. The masses of 31 measured proton-rich nuclei with $7\leq A\leq41$ and $-5\leq (N-Z)\leq-3$ can be remarkably well reproduced by using the proposed relations, with a root-mean-square deviation of 0.398 MeV, which is much smaller than the results of Kelson-Garvey (0.502 MeV) and Isobar-Mirror mass relations (0.647 MeV). This is because many more masses of participating nuclei are involved in the ImKG mass relations for predicting the masses of unknown proton-rich nuclei. The masses for 144 unknown proton-rich nuclei with $6\leq A\leq74$ are predicted by using the ImKG mass relations. The one- and two-proton separation energies for these proton-rich nuclei and the diproton emission are investigated simultaneously.