Calculations of electric and magnetic nuclear excitations beyond mean field

我们在本申请中明确提到我们以前的DFG Grant。根据我们最近发表的文献[1]，我们决定申请一笔数额小得多的补助金，并对其进行修改。申请人为上述出版物的作者。在这里，我们解决了在轻核和重核中同时复制电巨偶极子共振的长期任务。这个问题通过考虑平均场以外的多粒子关联和开发适当的Skyrme参数来解决。这个程序将扩展到电等标量激发(因为激发不是耦合到好的同位旋，我们在这里主要指的是等标量激发)和非自然宇称激发。在这种方法下，我们将能够更可靠地预测低位集体等标态以及巨电共振的强度分布。我们的程序还包括稳定和不稳定核中的自旋激发和电荷交换共振(例如Gamow-Teller共振)。这一结果对广交会设施和天体物理应用具有重要意义。

We refer in the present application explicitly to our previous DFG Grant. In the light of our recent publication [1] we have decided to apply for a much smaller grant with a modified program. The applicants are the authors of the above mentioned publication. Here we solved the longstanding task of reproducing simultaneously the electric giant dipole resonances in light and heavy nuclei. The problem was cured by considering many-particle correlations beyond mean-field and developing an appropriate Skyrme parametrization. This program will be extended to electric isoscalar excitations (as the excitations are not coupled to good isospin we refer here to predominately isoscalar excitations) and to unnatural parity excitations. Within this approach we will be able to predict more reliably low-lying collective isoscalar states as well as strength distributions of giant electric resonances. Our program includes also spin excitation and charge exchange resonances (e.g. Gamow-Teller resonances) in stable and unstable nuclei. The results have implications for the FAIR facility and as input for astrophysical applications.