Nuclear liquid-gas phase transition and supernovae evolution

Jérôme Margueron, Jesús Navarro, and Patrick Blottiau
Phys. Rev. C 70, 028801 – Published 10 August 2004

Abstract

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.

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  • Received 8 April 2004

DOI:https://doi.org/10.1103/PhysRevC.70.028801

©2004 American Physical Society

Authors & Affiliations

Jérôme Margueron1,*, Jesús Navarro2, and Patrick Blottiau3

  • 1GANIL CEA∕DSM-CNRS∕IN2P3 BP 5027 F-14076 Caen Cedex 5, France
  • 2IFIC (CSIC, Universidad de Valencia) Apdo. 22085, E-46.071-Valencia, Spain
  • 3CEA∕DIF DPTA BP12 F-91680 Bruyères-le-Châtel Cedex, France

  • *Present address: Institut für Theoretische Physik, Universität Tübingen, D-72076 Tübingen, Germany.

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Vol. 70, Iss. 2 — August 2004

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