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arXiv 1302.0958nucl-th
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Z = 28 ~ 50同位素E1强度的系统研究

Systematic investigation of E1 strength for the isotopes from Z = 28 to 50

Shuichiro Ebata, Takashi Nakatsukasa, Tsunenori Inakura

摘要:

本文用含时平均场论对丰中子同位素Ni(Z=28)~ Sn(Z=50)的电偶极模(E1)进行了系统的研究。我们的含时方案是正则基含时Hartree-Fock-Bogoliubov理论,它可以自洽地描述具有配对关联的核动力学。我们的讨论集中在侏儒偶极共振(PDR)和E1极化率。中子皮厚度与PDR之间的相关性强烈地依赖于中子数,但皮厚度与E1极化率之间的相关性要稳定得多。

英文摘要:

We carry out a systematic study of electric dipole mode (E1) for neutron-rich isotopes from nickel (Z=28) to tin (Z=50) using a time-dependent mean-field theory. Our time-dependent scheme is the canonical-basis time-dependent Hartree-Fock-Bogoliubov theory which can self-consistently describe nuclear dynamics with pairing correlation. We focus our discussion on the pygmy dipole resonance (PDR) and E1 polarizability. The correlation between neutron-skin thickness and PDR strongly depends on the neutron number, but the correlation between the skin thickness and E1 polarizability is much more stable.

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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