Medium Modification of The Pion-Pion Interaction at Finite Density
Nuclear Theory
2009-10-31 v1
Abstract
We discuss medium modifications of the unitarized pion-pion interaction in the nuclear medium. We incorporate both the effects of chiral symmetry restoration and the influence of collective nuclear pionic modes originating from the p-wave coupling of the pion to delta-hole configurations. We show in particular that the dropping of the sigma meson mass significantly enhances the low energy structure created by the in-medium collective pionic modes.
Cite
@article{arxiv.nucl-th/9909032,
title = {Medium Modification of The Pion-Pion Interaction at Finite Density},
author = {D. Davesne and Y. J. Zhang and G. Chanfray},
journal= {arXiv preprint arXiv:nucl-th/9909032},
year = {2009}
}
Comments
26 pages, 7 figures included, Latex file