Low-momentum interaction in few-nucleon systems
Nuclear Theory
2009-11-10 v1
Abstract
The effective low-momentum interaction Vlowk is applied to three- and four-nucleon systems. We investigate the 3H, 3He and 4He binding energies for a wide range of the momentum cutoffs. By construction, all low-energy two-body observables are cutoff-independent, and therefore, any cutoff dependence is due to missing three-body or higher-body forces. We argue that for reasonable cutoffs Vlowk is similar to high-order interactions derived from chiral effective field theory. This motivates augmenting Vlowk by corresponding three-nucleon forces. The set of low-momentum twoand three-nucleon forces can be used in calculations of nuclear structure and reactions.
Cite
@article{arxiv.nucl-th/0405016,
title = {Low-momentum interaction in few-nucleon systems},
author = {Andreas Nogga and Scott K. Bogner and Achim Schwenk},
journal= {arXiv preprint arXiv:nucl-th/0405016},
year = {2009}
}
Comments
4 pages, 4 figures