2003/01/14 by Takumi Muto, Masatomi Yasuhira, M. Yasuhira +2
Physics and Astronomy · #Gamma-ray bursts and supernovae #Neutrino Physics Research #Pulsars and Gravitational Waves Research #astro-ph #nucl-th
paper · pdf · doi:10.1103/physrevd.67.103002
published as Phys.Rev. D67 (2003) 103002 · 35 pages, 4 figures
arxiv created 2003/01/14 · openalex publication_date 2003/05/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The neutrino mean free paths in hot neutron-star matter are obtained in the presence of kaon condensates. The kaon-induced neutrino absorption process, which is allowed only in the presence of kaon condensates, is considered for both nondegenerate and degenerate neutrinos. The neutrino mean free path due to this process is compared with that for neutrino-nucleon scattering. While the mean free path for the kaon-induced neutrino absorption process is shown to be shorter than for the ordinary two-nucleon absorption process by several orders of magnitude when the temperature is not very high, the neutrino-nucleon scattering process still has a dominant contribution to the neutrino opacity. Thus, the kaon-induced neutrino absorption process has a minor effect on the thermal and dynamical evolution of protoneutron stars.