1999/07/31 by M.F.M. Lutz, M. Lutz, Bengt Friman +3 · 5 citations
Mathematics · Physics and Astronomy · #Equation of state #Fermi Gamma-ray Space Telescope #High-Energy Particle Collisions Research #Lagrangian #Mathematical physics #Mathematics #Nuclear matter #Nuclear physics #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum mechanics #Quark #Saturation (graph theory) #hep-ph #nucl-th
paper · pdf · doi:10.1016/s0370-2693(99)01494-x
published as Phys.Lett.B474:7-14,2000 · revised version, with minor corrections, 13 pages, 3 Postscript figures
arxiv created 1999/10/07 · openalex publication_date 2000/02/01 · arxiv updated 2010/12/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We construct an equation-of-state for nuclear matter based on the chiral Lagrangian. The relevant scales are discussed and an effective chiral power expansion scheme, which is constructed to work around the nuclear saturation density, is presented. A realistic equation-of-state is obtained by adjusting one free parameter, when the leading and subleading terms in the expansion are included. The saturation mechanism is due to correlations induced by the one-pion-exchange interaction. Furthermore, we find a substantial deviation from the Fermi-gas estimate of the quark condensate in nuclear matter already at the saturation density.