论文标题
对称能量：从头开始预测的现状与经验约束
The Symmetry Energy: Current Status of Ab Initio Predictions vs. Empirical Constraints
论文作者
论文摘要
无限的核物质是一个合适的实验室，可以在多体系统中了解核力量。鉴于最近和计划的测量值对异，敏感物质的方程式敏感，对中子富裕物质的现代理论预测尤其及时。由于这些原因，在过去的几年中，我们对中子富含物质的状态和密切相关的对称能量的状态方程式进行了广泛的看法，这是本文的重点。它的密度依赖性对于许多核和天体物理系统至关重要，范围从中子皮到中子星的结构。我们审查并讨论与最近的经验约束有关的摘要预测。我们强调并证明自由空间NN数据对状态中子问题方程的密度依赖性构成严格的约束，这实际上决定了饱和时对称能的斜率。
Infinite nuclear matter is a suitable laboratory to learn about nuclear forces in many-body systems. Modern theoretical predictions of neutron-rich matter are particularly timely in view of recent and planned measurements of observables which are sensitive to the equation of state of isospin-asymmetric matter. For these reasons, over the past several years we have taken a broad look at the equation of state of neutron-rich matter and the closely related symmetry energy, which is the focal point of this article. Its density dependence is of paramount importance for a number of nuclear and astrophysical systems, ranging from neutron skins to the structure of neutron stars. We review and discuss ab initio predictions in relation to recent empirical constraints. We emphasize and demonstrate that free-space NN data pose stringent constraints on the density dependence of the neutron matter equation of state, which essentially determines the slope of the symmetry energy at saturation.
