Equivalence of the spherical and deformed shell-model approach to intruder states
Equivalence of the spherical and deformed shell-model approach to intruder states
复制标题
入侵者状态的球形和变形壳模型方法的等效性
DOI：
10.1016/0370-2693(89)91582-7
复制
发表时间：
1989
影响因子：
4.4
通讯作者：
M. Waroquier
中科院分区：
文献类型：
--
作者：
K. Heyde;C. Coster;J. Ryckebusch;M. Waroquier
我们指出，在球壳模型中引入粒子-空穴(p-h)激发对入侵态的描述与从Nilsson模型出发的描述是等价的。我们进一步指出，在球壳模型中，核子-核子相互作用的主要部分是两体质子-中子四极相互作用，这是导致入侵态激发能低的主要原因。在形变壳层模型中，四极结合能主要通过势的一体部分获得。
We point out that the description of intruder states, incorporating particle-hole (ph) excitation across a closed shell in the spherical shell model or a description starting from the Nilsson model are equivalent. We furthermore indicate that the major part of the nucleon-nucleon interaction, responsible for the low excitation energy of intruder states comes as a two-body proton-neutron quadrupole interaction in the spherical shell model. In the deformed shell model, quadrupole binding energy is gained mainly through the one-body part of the potential.