2026/01/26 by Mia Kumamoto, Catherine Welch
Physics and Astronomy · #Binary number #Gamma-ray bursts and supernovae #Magnetic field #Neutrino #Neutrino Physics Research #Neutron star #Opacity #Pulsars and Gravitational Waves Research
paper · pdf · doi:10.1103/jbgw-b47c
published in Physical review. D/Physical review. D. 113(12) (American Physical Society)
openalex publication_date 2026/06/01 · openalex created_date 2026/06/02 · openalex updated_date 2026/08/01
Neutrino interactions play a central role in transport and flavor evolution in the ejecta of binary neutron star mergers. Simulations suggest that neutron star mergers may produce magnetic fields as strong as 1017 G, but computational difficulties have hampered the inclusion of magnetic field effects in neutrino interaction rates. In this paper we give approximate interaction rates for neutrinos in the presence of strong magnetic fields, including the effects of Landau quantization and anomalous magnetic moments with errors of order √(T/M). We also comment on a neutrino production channel from individual neutrons that can produce low-energy νν pairs even at low density.