Phys. Rev. C 77, 035806 (2008) [9 pages]Phase diagram of nuclear “pasta” and its uncertainties in supernova coresSee Also: Erratum Received 27 November 2007; published 25 March 2008 We examine the model dependence of the phase diagram of inhomogeneous nulcear matter in supernova cores using the quantum molecular dynamics (QMD). Inhomogeneous matter includes crystallized matter with nonspherical nuclei—“pasta” phases—and the liquid-gas phase-separating nuclear matter. Major differences between the phase diagrams of the QMD models can be explained by the energy of pure neutron matter at low densities and the saturation density of asymmetric nuclear matter. We show the density dependence of the symmetry energy is also useful to understand uncertainties of the phase diagram. We point out that, for typical nuclear models, the mass fraction of the pasta phases in the later stage of the collapsing cores is higher than 10-20%. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.77.035806
DOI:
10.1103/PhysRevC.77.035806
PACS:
26.50.+x, 21.65.Mn, 26.60.Gj, 97.60.Bw
See AlsoErratum: Hidetaka Sonoda, Gentaro Watanabe, Katsuhiko Sato, Kenji Yasuoka, and Toshikazu Ebisuzaki, Erratum: Phase diagram of nuclear “pasta” and its uncertainties in supernova cores [Phys. Rev. C 77, 035806 (2008)], Phys. Rev. C 81, 049902 (2010). |
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