Abstract

Three types of isobaric resonances—giant Gamow–Teller, analog, and pygmy resonances (GTR, AR, and PR, resonances)—are studied within the microscopic theory of finite Fermi systems and its model approximation. The calculated GTR, AR, and PR energies agree well with experimental data. The parameters of local Landau–Migdal isospin–isospin and spin–isospin interactions are determined from a comparison of the calculated GTR, AR, and PR energies with experimental data. A comparison of the values obtained for these parameters with their counterparts deduced by other others from experimental data on charge–exchange reactions demonstrates agreement within the errors in the majority of cases.

中文翻译：

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电荷交换等压共振和局部相互作用参数

摘要

在有限费米系统的微观理论及其模型近似中研究了三种类型的等压共振-巨大的Gamow-Teller共振，模拟共振和侏儒共振（GTR，AR和PR共振）。计算出的GTR，AR和PR能量与实验数据非常吻合。通过计算的GTR，AR和PR能量与实验数据的比较，可以确定局部Landau-Migdal异旋旋-异旋旋和自旋-异旋旋的参数。将这些参数与其他参数从电荷交换反应的实验数据中推导出的参数值进行比较，表明在大多数情况下，误差是一致的。