Suppression of the repulsive force in nuclear interactions near the chiral phase transition
High Energy Physics - Phenomenology
2012-01-27 v1 Nuclear Theory
Abstract
We introduce an effective chiral Lagrangian with a dilaton responsible for the trace anomaly in QCD. As the "dilaton limit" is taken, which drives a system to near chiral restoration density, a linear sigma model emerges from the highly non-linear structure. A striking prediction is that the vector-meson--nucleon interaction gets strongly suppressed when the dilaton limit is approached. Its phenomenological implications for the thermodynamics of dense baryonic matter are briefly discussed.
Keywords
Cite
@article{arxiv.1201.5511,
title = {Suppression of the repulsive force in nuclear interactions near the chiral phase transition},
author = {Chihiro Sasaki},
journal= {arXiv preprint arXiv:1201.5511},
year = {2012}
}
Comments
4 pages, to appear in the proceedings of Critical Point and Onset of Deconfinement, Wuhan, China, Nov.7-11 2011