核力是描述从微观的原子核到宏观的中子星的最关键的理论输入，是从微观层次上理解所有核结构与核反应现象的基本出发点，在核物理研究中具有举足轻重的地位。近年来，基于 Weinberg 数幂规则的手征核力获得了巨大成功。目前，Weinberg 手征核力面临的主要问题是：基于非相对论手征微扰理论且不满足重整化群不变性。这就导致 Weinberg 手征核力无法直接应用于相对论从头计算，且在应用到少体计算时不确定度较大。针对这些问题，我们计划基于在单重子系统日益受到关注的协变重子手征微扰理论构建高精度手征核力及超子-核子（超子）相互作用，为相对论核结构、核反应研究提供关键理论输入；探索发展满足重整化群不变性的手征核力；发展相对论的从头计算方法，开展第一性原理研究。

The nuclear force plays a fundamental role in nuclear physics and serves as the basis to understand all nuclear structure and reaction phenomena. In recent years, the so-called chiral nuclear forces, first proposed by Weinberg in the 1990s, have received much attention and made remarkable progress. At present, the main issues of Weinberg chiral forces are 1) they are based on the non-relativistic baryon chiral perturbation theory and 2) they are cutoff sensitive, namely not renormalization group invariant. Because of these, they cannot be directly applied in relativstic calculations and may result in large uncertainties in few body calculations. On the other hand, in the one baryon sector covariant baryon chiral perturbation theory has been shown to converge relatively faster and satisfy all symmetry and analyticity constraints. In view of this and the fact that Lorentz covariance is an important symmetry constraint of nature, we plan to construct relativistic high precision chiral nuclear forces and hyperon-nucleon (hyperon) interactions, which can provide essential theoretical inputs to relativistic nuclear structure and reaction studies, and to explore the possibility of building a nuclear force that is renormalization group invariant. To make full advantage of such forces, we will develop relativistic ab-initio methods and study frontier nuclear and hypernuclear physics with these forces, which can provide important references or guidances for planned or ongoing experiments at large international facilities.