朗道费米液体理论中的核集体激发
Nuclear collective excitations in Landau Fermi liquid theory
摘要：
在朗道费米液体理论中研究了原子核的集体激发。利用线性sigma-omega模型的核子-核子相互作用，得到了不同$l$值的核集体激发能，并分别与球核巨共振的质心能量进行了拟合.此外，还指出，除l=1外的等矢量巨共振对应于质子处于创生态，中子处于湮灭态的模式，反之亦然。预测了具有不同l值的核集体激发态的混合态。
英文摘要：
The nuclear collective excitations are studied within Landau Fermi liquid theory. By using the nucleon-nucleon interaction of the linear sigma-omega model, the nuclear collective excitation energies of different values of $l$ are obtained, which are fitted with the centroid energies of the giant resonances of spherical nuclei, respectively. In addition, it is pointed out that the isovector giant resonances except l=1 correspond to the modes that protons are in the creation state and neutrons are in the annihilation state, and vice versa. Some mixtures of the nuclear collective excitation states with different values of l are predicted.
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