Nuclear structure around 80Zr
Nuclear structure around 80Zr
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DOI：
10.1088/1674-1137/34/1/010
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发表时间：
2010
影响因子：
3.6
通讯作者：
Zou Wen-hua;Tian Yuan;Shen Shui-fa;Gu Jian-Zhong;Peng Bang-Bao;Zhang Di-Da;Ma Zhong-yu
中科院分区：
文献类型：
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作者：
Zou Wen-hua;Tian Yuan;Shen Shui-fa;Gu Jian-Zhong;Peng Bang-Bao;Zhang Di-Da;Ma Zhong-yu
近年来，人们对具有相同中子数和质子数的原子核（N = Z）的研究活动十分活跃。在N = Z核中，特别是在原子质量约为80的核中，已经表现出了奇特的性质。本文采用投影壳模型（PSM）和相对论Hartree-Bogoliubov（RHB）理论，研究了A ~（80）区N = Z线附近的核结构。计算了Zr同位素80、82、84 Zr的投影势能面和基态能带。结果表明，形状共存发生在所有这些核。此外，我们发现，剩余的中子-质子相互作用强烈影响的基态带的80锆，但它略有修改的82锆和84锆。
Recent years have witnessed intense activity concerning the study of nuclei with equal numbers of neutrons and protons (N = Z). Exotic properties have been exhibited in the N = Z nuclei, especially in those with atomic masses around 80. In the present paper, the projected shell model (PSM) together with a relativistic Hartree–Bogoliubov (RHB) theory is used to study the nuclear structure near the N = Z line in the mass A ≈ 80 region. For three Zr isotopes 80,82,84Zr, the projected potential energy surfaces and ground state bands are calculated. It is shown that shape coexistence occurs in all of these nuclei. Moreover, we find that the residual neutron-proton interaction strongly affects the ground state band of 80Zr; however, it slightly modifies those of 82Zr and 84Zr.