论文标题
具有GOGNY-D1M能量密度功能的Actinides中四极杆耦合的微观描述
Microscopic description of quadrupole-octupole coupling in actinides with the Gogny-D1M energy density functional
论文作者
论文摘要
在平均场及以后的U，PU，CM和CF同位素的系列中，讨论了四极杆和八杆的自由度之间的相互作用。除了静态的hartree-fock-bogoliubov方法外，还要基于gogny能量密度密度函数的参数d1m来计算奇偶校验恢复和对称性主持的生成器坐标方法计算，从而考虑了动态的超越场相关性。详细讨论了物理性能，例如相关能，负相关激励能以及降低的过渡概率$ b（e1）$和$ b（e3）$，并与可用的实验数据进行了详细讨论。结果表明，对于所研究的核，四极杆耦合是弱的，在很大程度上，负平等状态的特性可以通过单独的八极自由度来合理地描述。
The interplay between quadrupole and octupole degrees of freedom is discussed in a series of U, Pu, Cm and Cf isotopes both at the mean-field level and beyond. In addition to the static Hartree-Fock-Bogoliubov approach, dynamical beyond-mean-field correlations are taken into account via both parity restoration and symmetry-conserving Generator Coordinate Method calculations based on the parametrization D1M of the Gogny energy density functional. Physical properties such as correlation energies, negative-parity excitation energies as well as reduced transition probabilities $B(E1)$ and $B(E3)$ are discussed in detail and compared with the available experimental data. It is shown that, for the studied nuclei, the quadrupole-octupole coupling is weak and to a large extent the properties of negative parity states can be reasonably well described in terms of the octupole degree of freedom alone.
