high precision nuclear forces from chiral eft state of the art challenges and outlook

• DOI: 10.48550/arxiv.1911.11875
• Publication Date: 2020-04-17
• Authors: Evgeny Epelbaum; P. Reinert; Hermann Krebs
• Keywords: Nuclear Theory; Physics; QC1-999; nuclear forces; FOS: Physical sciences; 01 natural sciences; regularization; Nuclear Theory (nucl-th); High Energy Physics - Phenomenology; effective field theory; High Energy Physics - Phenomenology (hep-ph); few-body systems; 0103 physical sciences; Nuclear Experiment (nucl-ex); Nuclear Experiment; chiral perturbation theory

We review a new generation of nuclear forces derived in chiral effective field theory using the recently proposed semilocal regularization method. We outline the conceptual foundations of nuclear chiral effective field theory, discuss all steps needed to compute nuclear observables starting from the effective chiral Lagrangian and consider selected applications in the two- and few-nucleon sectors. We highlight key challenges in developing high-precision tree-body forces, such as the need to maintain consistency between two- and many-body interactions and constraints placed by the chiral and gauge symmetries after regularization.<br/>44 pages, 14 figures, 2 tables, Submitted to Frontiers in Physics (Research topic) The Long-Lasting Quest for Nuclear Interactions: The Past, the Present and the Future<br/>