Impact of nuclear "pasta" on neutrino transport in collapsing stellar cores

Abstract

Nuclear ``pasta'', nonspherical nuclei in dense matter, is predicted to occur in collapsing supernova cores. We show how pasta phases affect the neutrino transport cross section via weak neutral current using several nuclear models. This is the first calculation of the neutrino opacity of the phases with rod-like and slab-like nuclei taking account of finite temperature effects, which are well described by the quantum molecular dynamics. We also show that pasta phases can occupy 10--20% of the mass of supernova cores in the later stage of the collapse.

arXiv comment6pages, 3figures

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Cited by in corpus (35)

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• Phase diagram of nuclear "pasta" and its uncertainties in supernova cores
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• The neutron star inner crust and symmetry energy
• Statistical description of complex nuclear phases in supernovae and proto-neutron stars
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• Light clusters, pasta phases and phase transitions in core-collapse supernova matter
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• Nuclear pasta in hot dense matter and its implications for neutrino scattering
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• Molecular Dynamics for Dense Matter
• A Survey of Nuclear Pasta in the Intermediate Density Regime: Structure Functions for Neutrino Scattering
• The Neutrino Opacity of Neutron Star Inner Crust
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• Neutrino diffusion in the pasta phase matter within the Thomas-Fermi approach
• Charged Ising Model of Neutron Star Matter
• Towards a quantal dynamical simulation of the neutron-star crust
• Pairing effects in nuclear pasta phase within the relativistic Thomas-Fermi formalism
• Low-Density Instability of Multi-Component Matter with Trapped Neutrinos
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