064 I Scientific Highlights
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 fo...
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| Format: | Text |
| Language: | English |
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| 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 |
| Summary: | 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 |
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