Ground state properties of odd-Z superheavy nuclei
Ground state properties of odd-Z superheavy nuclei
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DOI：
10.1103/physrevc.67.064302
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发表时间：
2003-06
影响因子：
3.1
通讯作者：
Z. Ren;Dinghan Chen;Fei Tai;Hongsheng Zhang;W. Shen
中科院分区：
文献类型：
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作者：
Z. Ren;Dinghan Chen;Fei Tai;Hongsheng Zhang;W. Shen
用变形相对论平均场理论系统地研究了质量范围为Z = 97 ~ 115和N = 140 ~ 190的奇Z超重核的基态性质。特别强调了N = 184附近的核壳效应。计算清楚地表明，RMF模型能可靠地再现已知原子核的结合能和α衰变能数据，也可用于预测未知原子核的结合能。发现形变对许多超重核起着重要的作用。对于N = 184的同工图，较轻的同工图近似为球形，而较重的同工图则是变形的。N = 184等音的α衰变能量在某些情况下低于邻近核，在另一些情况下则高于邻近核。这表明N = 184的同色图具有复杂的结构行为。
The ground state properties of odd-Z superheavy nuclei in the mass range of Z = 97-115 and N = 140-190 are systematically investigated in deformed relativistic mean-field (RMF) theory. Special emphasis is placed on nuclear shell effect around N = 184. Calculations clearly show that the RMF model can reliably reproduce the data of binding energy and alpha decay energy of known nuclei and can also be used to predict the binding energy of unknown nuclei. It is found that deformation plays an important role for many superheavy nuclei. For N = 184 isotones, the lighter ones are approximately spherical but the heavier ones are deformed. The alpha-decay energies of N = 184 isotones are lower than those of neighboring nuclei in some cases and higher in other cases. This demonstrates that there is a complicated structural behavior for N = 184 isotones.