Nuclear properties with semilocal momentum-space regularized chiral interactions beyond N2LO
Nuclear properties with semilocal momentum-space regularized chiral interactions beyond N2LO
复制标题
具有超越 N2LO 的半局域动量空间正则手性相互作用的核特性
DOI：
10.1103/physrevc.106.064002
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发表时间：
2022
影响因子：
3.1
通讯作者：
Le, H.
中科院分区：
文献类型：
--
作者：
Maris, P.;Roth, R.;Epelbaum, E.;Furnstahl, R. J.;Golak, J.;Hebeler, K.;Hüther, T.;Kamada, H.;Krebs, H.;Le, H.
结合当前低能核物理国际合作的两核子相互作用和三阶()三核子力，我们对少核子系统以及轻、中等质量核进行了全面的研究。为了解决从我们早期研究中发现的利用二核子力和三核子力的核的系统过结合问题，我们考虑了手征有效场论中对两核子势的更高阶修正，直到五阶。由此得到的哈密顿量可以用结合能和选定的核子-氚截面作为输入来完全确定。在此基础上，对轻壳核的其他核子-氚散射观测值和光谱进行了详细的关联截断误差分析，与实验数据相吻合。此外，考虑到两核子相互作用的四阶()修正，假设哈密顿量从数据中完全固定，则氧同位素链中原子核的基态能量的预测值与实验值非常吻合。另一方面，氧同位素的电荷半径被低估了，而氧同位素的电荷半径几乎被低估了。
We present a comprehensive investigation of few-nucleon systems as well as light and medium-mass nuclei up tousing the current Low Energy Nuclear Physics International Collaboration two-nucleon interactions in combination with the third-order () three-nucleon forces. To address the systematic overbinding of nuclei starting fromfound in our earlier study utilizing thetwo- and three-nucleon forces, we take into account higher-order corrections to the two-nucleon potentials up through fifth order in chiral effective field theory. The resulting Hamiltonian can be completely determined using thebinding energies and selected nucleon-deuteron cross sections as input. It is then shown to predict other nucleon-deuteron scattering observables and spectra of light-shell nuclei, for which a detailed correlated truncation error analysis is performed, in agreement with experimental data. Moreover, the predicted ground state energies of nuclei in the oxygen isotopic chain fromtoas well asandshow a remarkably good agreement with experimental values, given that the Hamiltonian is fixed completely from thedata, once the fourth-order () corrections to the two-nucleon interactions are taken into account. On the other hand, the charge radii are found to be underpredicted byfor the oxygen isotopes and by almostforand.