Neutron matter on the lattice with pionless effective field theory
Nuclear Theory
2009-11-10 v1 Astrophysics
High Energy Physics - Lattice
Abstract
We study neutron matter by combining pionless effective field theory with non-perturbative lattice methods. The neutron contact interaction is determined by zero temperature scattering data. We simulate neutron matter on the lattice at temperatures 4 and 8 MeV and densities below one-fifth normal nuclear matter density. Our results at different lattice spacings agree with one another and match bubble chain calculations at low densities. The equation of state of pure neutron matter obtained from our simulations agrees quantitatively with variational calculations based on realistic potentials.
Keywords
Cite
@article{arxiv.nucl-th/0412002,
title = {Neutron matter on the lattice with pionless effective field theory},
author = {Dean Lee and Thomas Schaefer},
journal= {arXiv preprint arXiv:nucl-th/0412002},
year = {2009}
}
Comments
28 pages, 13 figures