064 I Scientific Highlights

• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Arctic
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.642.8409; http://www.nao.ac.jp/contents/about-naoj/reports/annual-report/en/2012/e_web_064.pdf

We studied the supernova neutrino scattering and absorption processes in strongly magnetized proto-neutron stars at finite temperature and density. We used a fully relativistic mean field theory [2] for the hadronic sector of the equation of state including hyperons. We solved the Dirac equations for all constituent particles, p, n, Λ, e, and ν, for a poloidal magnetic field with B ~ 1017 G. We then applied the solutions to obtain a quantitative estimate of the asymmetry that emerges from the neutrino-baryon collision processes. We included the effects of distortion of the Fermi spheres made by magnetic field that implies asymmetric neutrino scattering and absorption cross-sections. We found that the differential neutrino scattering cross sections are slightly enhanced in the arctic direction