Contribution of chiral three-body forces to the monopole component of the effective shell-model Hamiltonian
Contribution of chiral three-body forces to the monopole component of the effective shell-model Hamiltonian
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手性三体力对有效壳模型哈密顿量单极子分量的贡献
DOI：
10.1103/physrevc.100.034324
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发表时间：
2018-12
影响因子：
3.1
通讯作者：
Xu F R
中科院分区：
文献类型：
--
作者：
Ma Y Z;Coraggio L;De Angelis L;Fukui T;Gargano A;Itaco N;Xu F R
我们研究了现实的三体力在提供有效壳模型哈密顿量的可靠单极分量方面所起的作用。为此，我们从手征微扰理论中建立的核势出发，导出了有和没有三体势贡献的有效壳层模型哈密顿量，并将壳层模型的计算结果与一组证明壳层演化性质的观测数据进行了比较。我们研究的试验场是属于$Fp$壳的核，因为在$^{48}\mathm{Ca}$和$^{56}\mathm{Ni}中向壳闭合演化的壳为壳模型哈密顿提供了一个范例。我们的分析表明，只有包含三体力的贡献，有效壳模型哈密顿量的单极分量才能重现实验壳层在$N=28$时向闭合方向和超越闭合方向的演化。
We present a study of the role played by realistic three-body forces in providing a reliable monopole component of the effective shell-model Hamiltonian. To this end, starting from a nuclear potential built up within the chiral perturbation theory, we derive effective shell-model Hamiltonians with and without the contribution of the three-body potential and compare the results of shell-model calculations with a set of observables that evidence shell-evolution properties. The testing ground of our investigation is nuclei belonging to the $fp$ shell, since the shell-evolution towards shell closures in $^{48}\mathrm{Ca}$ and $^{56}\mathrm{Ni}$ provides a paradigm for shell-model Hamiltonians. Our analysis shows that only by including contributions of the three-body force is the monopole component of the effective shell-model Hamiltonian then able to reproduce the experimental shell evolution towards and beyond the closure at $N=28$.
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影响因子：
3.1
作者：
L. Coraggio;A. Covello;A. Gargano;N. Itaco
通讯作者：
L. Coraggio;A. Covello;A. Gargano;N. Itaco
影响因子：
3.1
作者：
L. Coraggio;L. D. Angelis;T. Fukui;A. Gargano;N. Itaco;F. Nowacki
通讯作者：
L. Coraggio;L. D. Angelis;T. Fukui;A. Gargano;N. Itaco;F. Nowacki
影响因子：
4.4
作者：
S. Weinberg
通讯作者：
S. Weinberg
影响因子：
3.1
作者：
D. R. Entem;R. Machleidt
通讯作者：
D. R. Entem;R. Machleidt
影响因子：
3
作者：
L. Coraggio;A. Covello;A. Gargano;N. Itaco;T. Kuo
通讯作者：
L. Coraggio;A. Covello;A. Gargano;N. Itaco;T. Kuo