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首页> 外文期刊>Physics of atomic nuclei >Dispersive Optical-Model Potential for Protons in 100 <= A <= 132 Even-Even Tin Isotopes
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Dispersive Optical-Model Potential for Protons in 100 <= A <= 132 Even-Even Tin Isotopes

机译：100 <= A <= 132偶数偶数锡同位素中质子的色散光学模型势

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摘要

Data on single-particle energies, differential elastic-scattering cross sections, and total cross sections for proton-induced reactions on stable tin isotopes were analyzed on the basis of the dispersive optical model. Good agreement with experimental data was obtained by setting the parameters of the dispersive optical potential to values averaged over the tin isotopic chain and by assuming that the dependence of surface absorption on the neutron-proton asymmetry is close to a traditional dependence. Predictive calculations for single-particle proton spectra and total reaction cross sections were performed for the doubly magic isotopes Sn-100,Sn-132. The calculated values of the energy gap between the 1h (11/2)-1g (7/2) and 1g (7/2)-2d (5/2) states were found to be in good agreement with the results of calculations performed with allowance for the tensor component of the effective nucleon-nucleon interaction.
机译：在色散光学模型的基础上，分析了质子诱导的稳定锡同位素反应的单粒子能量，微分弹性散射截面和总截面数据。通过将色散光势的参数设置为锡同位素链上的平均值，并假设表面吸收对中子-质子不对称性的依赖性接近传统依赖性，可以与实验数据取得良好的一致性。对双魔术同位素Sn-100，Sn-132进行了单粒子质子谱和总反应截面的预测计算。发现1h（11/2）-1g（7/2）和1g（7/2）-2d（5/2）状态之间的能隙计算值与执行的计算结果非常吻合考虑到有效核子-核子相互作用的张量分量。

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