Asymmetric neutrino production in magnetized proto-neutron stars in fully relativistic mean-field approach

Journal Article · Fri May 02 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4874075· OSTI ID:22280466

Maruyama, Tomoyuki ^[1]; Kajino, Toshitaka; Hidaka, Jun; Takiwaki, Tomoya ^[2]; Yasutake, Nobutoshi ^[3]; Kuroda, Takami ^[4]; Cheoun, Myung-Ki ^[5]; Ryu, Chung-Yeol ^[6]; Mathews, Grant J. ^[7]

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1. College of Bioresource Sciences, Nihon University, Fujisawa 252-8510 (Japan)
2. National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588 (Japan)
3. Department of Physics, Chiba Institute of Technology, Narashino 275-0023 (Japan)
4. Department of Physics, University of Basel, CH-4056 Basel (Switzerland)
5. Department of Physics, Soongsil University, Seoul, 156-743 (Korea, Republic of)
6. General Education Curriculum Center, Hanyang University, Seoul, 133-791 (Korea, Republic of)
7. Center of Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, IN 46556 (United States)

We calculate the neutrino production cross-section in the proto-neutron-star matter under a strong magnetic field in the relativistic mean-field approach. We introduce a new parameter-set which can reproduce the 1.96 solar mass neutron star. We find that the production process increases emitted neutrinos along the direction parallel to the magnetic field and decrease those along its opposite direction. It means that resultant asymmetry due to the neutrino absorption and scattering process in the magnetic field becomes larger by the addition of the neutrino production process.

• OSTI ID: 22280466
• Journal Information: AIP Conference Proceedings, Vol. 1594, Issue 1; Conference: OMEG12: 12. international symposium on origin of matter and evolution of galaxies, Tsukuba (Japan), 18-21 Nov 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ABSORPTION
ASTROPHYSICS
ASYMMETRY
COSMIC NEUTRINOS
COSMOLOGY
CROSS SECTIONS
MAGNETIC FIELDS
MAGNETIC STARS
MASS
MEAN-FIELD THEORY
NEUTRON STARS
PARTICLE PRODUCTION
PROTOSTARS
RELATIVISTIC RANGE
SCATTERING