Subleading contributions to the three-nucleon contact interaction
Nuclear Theory
2020-05-11 v3
Abstract
We obtain a minimal form of the two-derivative three-nucleon contact Lagrangian, by imposing all constraints deriving from discrete symmetries, Fierz identities and Poincare' covariance. The resulting interaction, depending on 13 unknown low-energy constants, leads to a three-nucleon potential which we give in a local form in configuration space. We also consider the leading (no-derivative) four-nucleon interaction and show that there exists only one independent operator.
Cite
@article{arxiv.1102.4799,
title = {Subleading contributions to the three-nucleon contact interaction},
author = {L. Girlanda and A. Kievsky and M. Viviani},
journal= {arXiv preprint arXiv:1102.4799},
year = {2020}
}
Comments
11 pages. Three more operators found after correcting some mistaken Fierz relations