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arXiv 0709.3525nucl-th
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壳模型计算中Woods-Saxon势的参数化

Parameterization of the Woods-Saxon Potential for Shell-Model Calculations

N. Schwierz, I. Wiedenhover, A. Volya

摘要:

在现代核物理中,Woods-Saxon势的使用范围不断扩大,新的核数据的出现促使我们重新审视并优化Woods-Saxon势的参数,使之适用于$^{16}$ O和$^{208}$ Pb之间的双幻核周围的实验单核子谱。我们得到一个参数化,这是适用于整个核图表之间的$^{16}$ O和最重的元素的核素。除库仑分量外,所得到的参数集是同位旋对称的。我们表明,潜在的核平均场提供了一个很好的描述,导致质量的单粒子光谱,核半径,预测滴线,壳封闭和其他属性。因此,提出的伍兹-撒克逊拟合提供了足够的单粒子的基础上,壳模型计算桥接到连续。

英文摘要:

The drastically expanded use of the Woods-Saxon potential in modern day nuclear physics and the availability of new nuclear data motivated us to review and optimize the parameters of this potential to the experimental single-nucleon spectra around the doubly-magic nuclei between $^{16}$O and $^{208}$Pb. We obtain a parameterization which is applicable over the whole nuclear chart for nuclides between $^{16}$O and the heaviest elements. Apart from Coulomb components the obtained parameter set is isospin symmetric. We demonstrate that the potential provides a good description of the nuclear mean field leading to quality single-particle spectra, nuclear radii, prediction of drip-lines, shell closures and other properties. Thus presented Woods-Saxon fit provides adequate single-particle basis for shell model calculations bridging over into the continuum.

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