Shell-model study of boron, carbon, nitrogen, and oxygen isotopes with a monopole-based universal interaction
Shell-model study of boron, carbon, nitrogen, and oxygen isotopes with a monopole-based universal interaction
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基于单极子的通用相互作用的硼、碳、氮和氧同位素的壳模型研究
DOI：
10.1103/physrevc.85.064324
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发表时间：
2012-06
影响因子：
3.1
通讯作者：
Tsunoda, Naofumi
中科院分区：
文献类型：
--
作者：
Yuan, Cenxi;Suzuki, Toshio;Otsuka, Takaharu;Xu, Furong;Tsunoda, Naofumi
我们用一种新的壳层模型哈密顿量研究了硼、碳、氮和氧的同位素，该哈密顿量是基于单极-宇宙相互作用(V_(MU))的。这种哈密顿量能很好地再现这些原子核的基态能量、能级、电四极性质和自旋性质，在包括$(0-3)欧米伽激发的全PSD模型空间。特别是，它正确地描述了碳、氧同位素的滴线和基态B和N的自旋，而以前的一些相互作用如WBP和WBT则失败了。我们指出，包含$2\hbar\omega$激发对于再现其中的一些性质是重要的。在目前的$(0+2)\hbar\omega$计算中，小但恒定的E2有效电荷似乎工作得很好。由于包含$2\hbar\omega$模型空间做了相当小的更改，这似乎与$^{4}$核心的小有关。同样，自旋g因子非常接近自由值。在壳模型计算中，考察了张量力和自旋轨道力在自由空间中的适用性。
We study boron, carbon, nitrogen and oxygen isotopes with a newly constructed shell-model Hamiltonian developed from monopole-based-universal interaction ($V_{MU}$). The present Hamiltonian can reproduce well the ground-state energies, energy levels, electric quadrupole properties and spin properties of these nuclei in full psd model space including $(0-3)\hbar\omega$ excitations. Especially, it correctly describes the drip lines of carbon and oxygen isotopes and the spins of the ground states of $^{10}$B and $^{18}$N while some former interactions such as WBP and WBT fail. We point out that the inclusion of $2\hbar\omega$ excitations is important in reproducing some of these properties. In the present $(0+2)\hbar\omega$ calculations small but constant E2 effective charges appear to work quite well. As the inclusion of the $2\hbar\omega$ model space makes rather minor change, this seems to be related to the smallness of $^{4}$He core. Similarly, the spin g factors are very close to free values. The applicability of tensor and spin-orbit forces in free space, which are taken in the present Hamiltonian, is examined in shell model calculations.
DOI：
10.1007/0-306-47916-8_1
发表时间：
2003
期刊：
--
影响因子：
--
作者：
I. Talmi
通讯作者：
I. Talmi