How reliable is the mean-field Nuclear Matter description for supporting Chiral Effective Lagrangians?
Nuclear Theory
2007-05-23 v1 High Energy Physics - Phenomenology
Abstract
The link between non-linear chiral effective Lagrangians and the Walecka model description of bulk nuclear matter [1] is questioned. This fact is by itself due to the Mean Field Approximation (MFA) which in nuclear mater makes the picture of a nucleon-nucleon interaction based on scalar(vector) meson exchange, equivalent to the description of a nuclear matter based on attractive and repulsive contact interactions. We present a linear chiral model where this link between the Walecka model and an underlying to chiral symmetry realization still holds, due to MFA.
Keywords
Cite
@article{arxiv.nucl-th/9602036,
title = {How reliable is the mean-field Nuclear Matter description for supporting Chiral Effective Lagrangians?},
author = {A. Delfino and M. Malheiro and T. Frederico},
journal= {arXiv preprint arXiv:nucl-th/9602036},
year = {2007}
}
Comments
5 pages latex file after being uncompressed. Submitted to Phys. Letts. B