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arXiv 1502.00700nucl-th
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sd壳层价核子的从头算有效相互作用

Ab initio effective interactions for sd-shell valence nucleons

E. Dikmen, A. F. Lisetskiy, B. R. Barrett, P. Maris, A. M. Shirokov, J. P. Vary

摘要:

利用有效JISP 16势和手征N3 LO核子-核子势,在$4\hbarΩ$或$N_{\rm max}=4$模型空间中对$A=18$和$19$核进行了\textit{ab initio}无核壳模型计算,并将多体有效哈密顿量变换到$0\hbarΩ$模型空间中,构造了$sd$ -壳层中的$A$ -体有效哈密顿量.我们将具有$A=18$和$A=19$的$A$ -体有效哈密顿量分成惰性核心、单体和二体分量。然后,我们使用这些核心,一,和两个身体组件进行标准的壳模型计算的$A=18$和$A=19$系统的价核子限制在$sd$壳。最后,我们比较了标准壳模型的结果在$0\hbarΩ$模型空间与精确的无核壳模型的结果在$4\hbarΩ$模型空间的$A=18$和$A=19$系统,发现很好的协议。

英文摘要:

We perform \textit{ab initio} no-core shell-model calculations for $A=18$ and $19$ nuclei in a $4\hbarΩ$, or $N_{\rm max}=4$, model space by using the effective JISP16 and chiral N3LO nucleon-nucleon potentials and transform the many-body effective Hamiltonians into the $0\hbarΩ$ model space to construct the $A$-body effective Hamiltonians in the $sd$-shell. We separate the $A$-body effective Hamiltonians with $A=18$ and $A=19$ into inert core, one-, and two-body components. Then, we use these core, one-, and two-body components to perform standard shell-model calculations for the $A=18$ and $A=19$ systems with valence nucleons restricted to the $sd$ shell. Finally, we compare the standard shell-model results in the $0\hbarΩ$ model space with the exact no-core shell model results in the $4\hbarΩ$ model space for the $A=18$ and $A=19$ systems and find good agreement.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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