Asymmetric Neutrino Reactions from Magnetized Proto-Neutron Stars in fully Relativistic Framework including Hyperons

Journal Article · Fri Oct 28 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3628422· OSTI ID:21612094

Maruyama, T ^[1]; Yasutake, N; Kajino, T ^[2]; Cheoun, M -K; Ryu, C -Y ^[3]

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1. College of Bioresource Sciences, Nihon University, Fujisawa 252-8510 (Japan)
2. National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan)
3. Department of Physics, Soongsil University, Seoul, 156-743 (Korea, Republic of)

We calculate the neutrino scattering and absorption on the hot and dense neutron-star matter with hyperons under the strong magnetic field using perturbative approach. We find that the absorption cross-sections show the remarkable angular dependence: its strength is reduced in the direction parallel to the magnetic field and enhanced in the opposite direction. This variation becomes about 2.2% when the magnetic field is about 2x10{sup 17} G.

• OSTI ID: 21612094
• Journal Information: AIP Conference Proceedings, Vol. 1377, Issue 1; Conference: FINUSTAR 3 Conference on frontiers in nuclear structure, astrophysics, and reactions, Rhodes (Greece), 23-27 Aug 2010; Other Information: DOI: 10.1063/1.3628422; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ABSORPTION
ANGULAR DISTRIBUTION
ASTROPHYSICS
ASYMMETRY
CROSS SECTIONS
HYPERONS
MAGNETIC FIELDS
NEUTRINO REACTIONS
NEUTRINOS
NEUTRON STARS
NUCLEAR MATTER
SCATTERING
VARIATIONS
BARYONS
DISTRIBUTION
ELEMENTARY PARTICLES
FERMIONS
HADRONS
LEPTON REACTIONS
LEPTONS
MASSLESS PARTICLES
MATTER
NUCLEAR REACTIONS
PHYSICS
SORPTION
STARS
STRANGE PARTICLES