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arXiv 1303.0197nucl-th
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nobelium区核的形变和准粒子谱

Deformations and quasiparticle spectra of nuclei in the nobelium region

Yue Shi, J. Dobaczewski, P. T. Greenlees, J. Toivanen, P. Toivanen

摘要:

我们已经进行了自洽的Skyrme Hartree-Fock-Bogolyubov计算的核接近$^{254}$号。自洽的变形,包括$β_{2,4,6,8}$作为旋转频率的函数,被确定为偶数-偶数核$^{246,248,250}$ Fm,$^{252,254}$号,和$^{256}$ Rf。计算了N=151和Z=99同位素的准粒子谱,并与实验数据和Woods-Saxon计算结果进行了比较。我们发现,我们的计算给出了高阶变形类似的伍兹-撒克逊潜力,实验准粒子的能量相当好地再现。

英文摘要:

We have performed self-consistent Skyrme Hartree-Fock-Bogolyubov calculations for nuclei close to $^{254}$No. Self-consistent deformations, including $β_{2,4,6,8}$ as functions of the rotational frequency, were determined for even-even nuclei $^{246,248,250}$Fm, $^{252,254}$No, and $^{256}$Rf. The quasiparticle spectra for N=151 isotones and Z=99 isotopes were calculated and compared with experimental data and the results of Woods-Saxon calculations. We found that our calculations give high-order deformations similar to those obtained for the Woods-Saxon potential, and that the experimental quasiparticle energies are reasonably well reproduced.

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