Asymmetric neutrino emission from magnetized proto-neutron star matter including hyperons in relativistic mean field theory

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.081303· OSTI ID:21541430

Maruyama, Tomoyuki ^[1]; Kajino, Toshitaka ^[2]; Yasutake, Nobutoshi ^[2]; Cheoun, Myung-Ki ^[2]; Ryu, Chung-Yeol ^[3]

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1. College of Bioresource Sciences, Nihon University, Fujisawa 252-0880 (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 asymmetric neutrino absorption and scattering cross sections on hot and dense magnetized neutron star matter, including hyperons in fully relativistic mean-field theory. The absorption/scattering cross sections are suppressed/enhanced incoherently in the direction of the magnetic field B=Bz-circumflex. The asymmetry is 2-4% at the matter density {rho}{sub 0{<=}{rho}B{<=}}3{rho}{sub 0} and temperature T{<=}40 MeV for B=2x10{sup 17} G. This asymmetry is comparable to the effects owing to parity violation or asymmetric magnetic field topology proposed for the origin of pulsar kicks.

• OSTI ID: 21541430
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 8; Other Information: DOI: 10.1103/PhysRevD.83.081303; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ABSORPTION
ASYMMETRY
COMPUTERIZED SIMULATION
CROSS SECTIONS
DENSITY
EMISSION
HYPERONS
MAGNETIC FIELDS
MATTER
MEAN-FIELD THEORY
MEV RANGE 10-100
NEUTRINOS
NEUTRON STARS
PARITY
PULSARS
RELATIVISTIC RANGE
SCATTERING
BARYONS
COSMIC RADIO SOURCES
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRONS
LEPTONS
MASSLESS PARTICLES
MEV RANGE
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
SIMULATION
SORPTION
STARS
STRANGE PARTICLES