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1.Relativistic EDF based on covariant chiral nuclear forces

Nuclear force (NF) has always been one of the most important subjects in the study of nuclear physics, and the study of NF is helpful to understand the structure and decay of atomic nuclei and has important scientific significance. In recent years, a series of high-precision NF have been constructed based on chiral effective field theory (ChEFT). These NF are progressively expanded by a small amount and truncated to a specific order, the error of which is determined by the order calculation rule, and provide an important input for understanding the physical phenomena in finite nuclei and neutron stars from first principles. However, such studies put very high demands on computers, which are difficult to apply to large-scale calculations of heavier nuclei on the nuclide map.

DFT is widely used to describe most of the entire nuclide map because of its small computational cost Structural properties of atomic nuclei. In view of this, we combine the advantages of C to construct nuclear force, and construct nuclear energy density functional (EDF) in different orders. The specific work includes drawing on the form of relativistic chiral NF in different orders and the idea of point coupling model to give the leading and next-leading order EDF. This work provides an important reference for the development of a new generation of relativistic DFT.