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Giant Gamow-Teller resonance: 40 Years after the prediction

机译:巨大的Gamow-Teller共振:预测40年后

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摘要

A brief survey of the physics of the giant Gamow-Teller resonance, from the history of its prediction and the first attempts at theoretically describing it to the present-day state of this realmof nuclear physics, is given. The structure of Gamow-Teller resonances is analyzed within the theory of finite Fermi systems. Simple expressions for the energy of the Gamow-Teller resonance and for the matrix elements of its excitation are derived via approximately solving the equations of this theory by the semiclassicalmethod. The calculated values of the energy difference between the Gamow-Teller resonance and the analogous resonance are found to be in good agreement with their experimental counterparts. Strength functions for the beta decay of neutron-rich nuclei, S_β(E), are analyzed, and the calculated values of S_β(E) are contrasted against relevant experimental data.
机译:从其预测的历史以及从理论上对其进行首次尝试到核物理领域的当前状态,对伽莫夫-泰勒共振的物理学进行了简要概述。在有限费米系统的理论范围内分析了Gamow-Teller共振的结构。通过半经典方法近似求解该理论的方程,可以得出Gamow-Teller共振能量及其激发矩阵元素的简单表达式。发现Gamow-Teller共振和类似共振之间的能量差的计算值与它们的实验对应物非常一致。分析了富中子核β衰变的强度函数S_β(E),并将S_β(E)的计算值与相关实验数据进行了对比。

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