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arXiv 1407.7699nucl-thnucl-ex
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核质量和低能谱的整体超平均场计算

Toward global beyond-mean-field calculations of nuclear masses and low-energy spectra

Tomás R. Rodríguez, Alexander Arzhanov, Gabriel Martínez-Pinedo

摘要:

在已有实验数据的基础上,用自洽平均场(MF)和超平均场(BMF)方法计算了偶偶核的质量、分离能和$2^{+}_{1}$激发能。所使用的泛函是基于Gogny D1S和D1M参数化,该方法包括来自轴向四极形状混合和对称性修正的超出平均场的校正,而无需假设高斯重叠近似。平均场,超越平均场的方法和实验数据之间的比较。此外,我们还讨论了结果的收敛性以及考虑BMF效应对魔壳能隙的可能减小。

英文摘要:

Self-consistent mean field (MF) and beyond-mean-field (BMF) calculations of masses, separation energies and $2^{+}_{1}$ excitation energies of even-even nuclei where experimental data is available are presented. The functionals used are based on the Gogny D1S and D1M parametrizations and the method includes beyond-mean-field corrections coming from both axial quadrupole shape mixing and symmetry restorations without assuming gaussian overlap approximations. A comparison between mean field, beyond-mean-field approaches and the experimental data is provided. Additionally, the convergence of the results and the possible reduction of the magic shell gaps by including BMF effects are also discussed.

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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