论文标题
钼同位素中的压缩模式共振：在a = 90附近的开放壳核中柔软度的出现
Compressional-mode resonances in the molybdenum isotopes: Emergence of softness in open-shell nuclei near A=90
论文作者
论文摘要
“为什么锡同位素软？” has remained, for the past decade, an open problem in nuclear structure physics: models which reproduce the isoscalar giant monopole resonance (ISGMR) in the "doubly-closed shell" nuclei, $^{90}$Zr and $^{208}$Pb, overestimate the ISGMR energies of the open-shell tin and cadmium nuclei, by as much as 1 MeV.为了阐明这一问题，我们介绍了对钼核中ISGMR的详细研究的结果，以阐明柔软性在哪里以及如何在$^{90} $ ZR和CADMIUM和CADMIUM和TIN同位素之间表现出来。该实验是使用$^{94,96,98,100} $ MO（$α，α^\ prime $）反应以$e_α= 386 $ MEV进行的。结果与相对论，自洽的随机相近似计算的比较表明，ISGMR响应开始显示钼同位素的柔软度，以$ a = 92 $开始。
"Why are the tin isotopes soft?" has remained, for the past decade, an open problem in nuclear structure physics: models which reproduce the isoscalar giant monopole resonance (ISGMR) in the "doubly-closed shell" nuclei, $^{90}$Zr and $^{208}$Pb, overestimate the ISGMR energies of the open-shell tin and cadmium nuclei, by as much as 1 MeV. In an effort to shed some light onto this problem, we present results of detailed studies of the ISGMR in the molybdenum nuclei, with the goal of elucidating where--and how--the softness manifests itself between $^{90}$Zr and the cadmium and tin isotopes. The experiment was conducted using the $^{94,96,98,100}$Mo($α,α^\prime$) reaction at $E_α= 386$ MeV. A comparison of the results with relativistic, self-consistent Random-Phase Approximation calculations indicates that the ISGMR response begins to show softness in the molybdenum isotopes beginning with $A=92$.
