Semi-local nuclear forces from chiral EFT: State-of-the-art & challenges

Understand

Recently, a new generation of nuclear forces has been developed in the framework of chiral EFT.

• An important feature of these potentials is a novel semi-local regularization approach that combines the advantages of a local regulator for long-range interactions with the convenience of an angle-independent nonlocal regulator for contact interactions.
• The authors discuss the key features of the semi-local two-nucleon potentials and demonstrate their outstanding performance in the two-nucleon sector by showing selected results up to fifth order in the EFT expansion.
• Also reviewed are applications to heavier systems, which are currently limited to third chiral order.