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arXiv 0907.1055nucl-thastro-ph.SRnucl-ex
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在rp过程路径附近N=Z核双磁性的证据

Evidence of double magicity of N=Z nuclei near the rp-process path

M. M. Sharma, J. K. Sharma

摘要:

Ni以上的N=Z核被认为是rp过程核合成中的等待点核。通过对质子滴线附近Kr同位素实验位移的研究,发现N=Z rp过程核$^{68}$ Se,$^{72}$ Kr,$^{76}$ Sr和$^{80}$ Zr在变形空间中质子数和中子数处都表现出明显的壳层能隙,从而使质子和中子的配对关联消失,从而赋予了这些核双幻性质.在这个区域中的一个显着数量的核也显示出在N = 34,36,38和40的变形空间中的中子magicity。

英文摘要:

N=Z nuclei above Ni are understood to be waiting-point nuclei in the rp-process nucleosynthesis. Investigating the experimental isotope shifts in Kr isotopes near the proton drip-line, we have discovered that N=Z rp-process nuclei $^{68}$Se, $^{72}$Kr, $^{76}$Sr and $^{80}$Zr exhibit a significant shell gap both at the proton and neutron numbers in the deformed space with the consequence that pairing correlations for protons and neutrons vanish, thus lending a double-magic character to these nuclei. A significant number of nuclei in this region are also shown to exhibit neutron magicity at N = 34, 36, 38, and 40 in the deformed space.

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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