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

Hidetaka Sonoda, Gentaro Watanabe, Katsuhiko Sato, Tomoya Takiwaki, Kenji Yasuoka, Toshikazu Ebisuzaki

Research output: Contribution to journalArticle

43 Citations (Scopus)

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.

Original languageEnglish
Article number042801
JournalPhysical Review C - Nuclear Physics
Volume75
Issue number4
DOIs
Publication statusPublished - 2007 Apr 6

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stellar cores
supernovae
neutrinos
nuclear models
nuclei
neutral currents
opacity
temperature effects
slabs
rods
molecular dynamics
cross sections

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Impact of nuclear "pasta" on neutrino transport in collapsing stellar cores. / Sonoda, Hidetaka; Watanabe, Gentaro; Sato, Katsuhiko; Takiwaki, Tomoya; Yasuoka, Kenji; Ebisuzaki, Toshikazu.

In: Physical Review C - Nuclear Physics, Vol. 75, No. 4, 042801, 06.04.2007.

Research output: Contribution to journalArticle

Sonoda, Hidetaka ; Watanabe, Gentaro ; Sato, Katsuhiko ; Takiwaki, Tomoya ; Yasuoka, Kenji ; Ebisuzaki, Toshikazu. / Impact of nuclear "pasta" on neutrino transport in collapsing stellar cores. In: Physical Review C - Nuclear Physics. 2007 ; Vol. 75, No. 4.
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