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arXiv 0909.4433nucl-th
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张量力对有限核多极响应的影响

Effects of the Tensor Force on the Multipole Response in Finite Nuclei

Li-Gang Cao, G. Colo', H. Sagawa, P. F. Bortignon, L. Sciacchitano

摘要:

本文采用Skyrme相互作用的完全自洽随机相位近似(RPA)模型,详细分析了张量相互作用对幻核多极响应的影响。我们解开的静态平均场的张量项引起的修改,和剩余的粒子-空穴(p-h)张量相互作用的具体功能,四极(2+),八极(3-),也磁偶极子(1+)的响应。指出张量力对磁偶极态的影响大于对自然宇称态2+和3-的影响,特别是在平均场水平上。最后讨论了更好地评估张量力参数的前景。

英文摘要:

We present a thorough analysis of the effects of the tensor interaction on the multipole response of magic nuclei, using the fully self-consistent Random Phase Approximation (RPA) model with Skyrme interactions. We disentangle the modifications to the static mean field induced by the tensor terms, and the specific features of the residual particle-hole (p-h) tensor interaction, for quadrupole (2+), octupole (3-), and also magnetic dipole (1+) responses. It is pointed out that the tensor force has a larger effect on the magnetic dipole states than on the natural parity states 2+ and 3-, especially at the mean field level. Perspectives for a better assessment of the tensor force parameters are eventually 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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