During the past two decades, chiral effective field theory has evolved into a powerful tool to derive nuclear forces from first principles. Nearly all two-nucleon interactions have been worked out up to sixth order of chiral perturbation theory, while, with few exceptions, three-nucleon forces, which play a subtle, but crucial role in microscopic nuclear structure calculations, have been derived up to fifth order. We review the current status of these forces as well as their applications in nuclear many-body systems. While the description of light nuclei is generally very successful, we point out and analyze problems encountered with medium-mass nuclei. We also survey the construction of equations of state for symmetric nuclear matter and neutron-rich matter based on chiral forces. A focal point is the symmetry energy and its impact on neutron skins and systems of astrophysical relevance. The physics of neutron-rich systems, from nuclei to compact stars, is essentially determined by the density dependence of the symmetry energy. We review the status of predictions in comparison with latest empirical constraints, with particular attention to those extracted from parity-violating electron scattering.

中文翻译：

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基于手性EFT的核力及其应用的最新进展


在过去的二十年中，手性有效场理论已发展成为从第一原理推导核力的强大工具。几乎所有的二核子相互作用都已被推导到六阶手性微扰理论，而除了少数例外，三核子力在微观核结构计算中发挥着微妙但至关重要的作用，已被推导到五阶手性微扰理论。命令。我们回顾了这些力的现状及其在核多体系统中的应用。虽然对轻核的描述通常非常成功，但我们指出并分析了中等质量核遇到的问题。我们还研究了基于手性力的对称核物质和富中子物质的状态方程的构造。焦点是对称能量及其对中子皮和天体物理相关系统的影响。从原子核到致密恒星的富中子系统的物理学本质上是由对称能量的密度依赖性决定的。我们回顾了与最新经验约束相比的预测状态，特别关注从宇称破坏电子散射中提取的预测。