Suppression of the repulsive force in nuclear interactions near the chiral phase transition

Details Suppression of the repulsive force in nuclear interactions near the chiral phase transition Suppression of the repulsive force in nuclear interactions near the chiral phase transition

2012-01-26

arxiv.org/abs/1201.5511v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, to appear in the proceedings of Critical Point and Onset of Deconfinement, Wuhan, China, Nov.7-11 2011

Scientific paper

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.

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