Nuclear Chiral EFT in the Precision Era

TL;DR

This paper reviews the current status and future prospects of nuclear chiral effective field theory, emphasizing precision improvements in two-nucleon force calculations and uncertainty quantification for low-energy nuclear physics.

Contribution

It advances the understanding of high-order chiral interactions and discusses methods to improve the precision and reliability of ab initio nuclear force models.

Findings

Precise determination of two-nucleon force at fifth order

Analysis of chiral symmetry's role in nuclear interactions

Assessment of convergence patterns and uncertainty quantification

Abstract

Chiral effective field theory has established itself as the method of choice to study nuclear forces and low-energy nuclear dynamics. I review the status and prospects of this approach and discuss ongoing efforts to advance the precision frontier for ab initio description of few-nucleon systems. Special emphasis is put on the precise determination of the two-nucleon force at fifth order in the chiral expansion, role of the chiral symmetry, the convergence pattern of the chiral expansion and the quantification of the theoretical uncertainties. The discussed topics are essential for ongoing studies towards elucidating the structure of the three-nucleon force which will be briefly addressed as well.