$^{10}$ Be中非弹性散射随双中子关联发展的剧烈变化
Drastic change in inelastic scattering depending on the development of dineutron correlation in $^{10}$Be
摘要：
在微观结构和反应模型相结合的框架下，通过分析弹性和非弹性散射，研究了$^{10}$ Be中双中子关联的发展和破缺。为了研究结构，在四体（$α+ α+ n + n$）簇模型的假设下构建了$^{10}$ Be核。在这项工作中，我们集中在0 $_1^+$，2 $_1^+$，2 $_2^+$状态的内部结构的变化时，自旋轨道相互作用的强度是不同的。内部结构，包括各种物理量，如能量，半径，和过渡强度，是由自旋轨道相互作用的强度显着影响。特别是，双中子关联的发展和破坏是由自旋轨道强度。内部结构的差异可以通过将所获得的波函数应用于与质子靶在$E/A =$ 59.4和200 MeV的弹性和非弹性散射来体现。虽然0 $_1^+$和2 $_1^+$态受原子核结构计算的自旋-轨道强度的显著影响，但弹性和非弹性截面的影响不大。另一方面，2 $_2^+$态的非弹性截面在很大程度上取决于结构计算的自旋轨道强度。因此，我们发现了一种方法来衡量双中子团簇结构的发展程度的基础上，其敏感性的2 $_2^+$态的$^{10}$ Be的非弹性截面。
英文摘要：
We investigated the development and breaking of the dineutron correlation in $^{10}$Be by analyzing the elastic and inelastic scatterings with a framework combing the microscopic structure and reaction models. For studying the structure, the $^{10}$Be nucleus was constructed under the assumption of a four-body ($α+ α+ n + n$) cluster model. In this work, we focused on the change in the inner structure for the 0$_1^+$, 2$_1^+$, and 2$_2^+$ states when the strength of the spin-orbit interaction is varied. The inner structure, including various physical quantities such as energy, radius, and transition strength, is drastically influenced by the strength of the spin-orbit interaction. In particular, the development and breaking of the dineutron correlation is governed by the spin-orbit strength. The differences in the inner structure can be manifested by applying the obtained wave functions to elastic and inelastic scatterings with a proton target at $E/A =$ 59.4 and 200 MeV. Although the 0$_1^+$ and 2$_1^+$ states are significantly influenced by the spin-orbit strength of the nuclear structure calculation, the elastic and inelastic cross sections are not much affected. On the other hand, the inelastic cross section of the 2$_2^+$ state depends greatly on the spin-orbit strength of the structure calculation. Thus, we discovered a way to measure the degree of the development of dineutron cluster structure based on its sensitivity to the inelastic cross section of the 2$_2^+$ state of $^{10}$Be.
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