2004/01/31 by J. Margueron, Jerome Margueron, J. Navarro +2 · 3 citations
Earth and Planetary Sciences · Physics and Astronomy · #High-pressure geophysics and materials #Nuclear physics research studies #Pulsars and Gravitational Waves Research #astro-ph #nucl-th
paper · pdf · doi:10.1103/physrevc.70.028801
published as Phys.Rev. C70 (2004) 028801 · version2 - precise that nuclear liquid-gas phase transition is 1st order and the unique instable mode is isoscalar
arxiv created 2004/03/11 · openalex publication_date 2004/08/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
It is shown that the large density fluctuations appearing at the onset of the first order nuclear liquid-gas phase transition can play an important role in the supernovae evolution. Due to these fluctuations, the neutrino gas may be trapped inside a thin layer of matter near the protoneutron star surface. The resulting increase of pressure may induce strong particle ejection a few hundred milliseconds after the bounce of the collapse, contributing to the revival of the shock wave. The Hartree-Fock+RPA scheme, with a finite-range nucleon--nucleon effective interaction, is employed to estimate the effects of the neutrino trapping due to the strong density fluctuations, and to discuss qualitatively this self-consistent dynamical effect for supernovae evolution.