2007/01/31 by Hidetaka Sonoda, Gentaro Watanabe, Katsuhiko Sato +3
Physics and Astronomy · #Neutrino Physics Research #Nuclear physics research studies #Pulsars and Gravitational Waves Research #astro-ph #nucl-th
paper · pdf · doi:10.1103/physrevc.75.042801
published as Phys.Rev.C75:042801,2007 · 6pages, 3figures
openalex publication_date 2007/04/06 · arxiv created 2007/04/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.