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arXiv 1009.0976nucl-thastro-ph.SR
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相对论平均场论中含超子的磁化原中子星物质的非对称中微子发射

Asymmetric Neutrino Emission from Magnetized Proto-Neutron Star Matter including Hyperons in Relativistic Mean Field Theory

Tomoyuki Maruyama, Toshitaka Kajino, Nobutoshi Yasutake, Myung-Ki Cheoun, Chung-Yeol Ryu

摘要:

在完全相对论平均场论中,计算了中微子在热的、致密的、含超子的磁化中子星物质上的非对称吸收和散射截面。吸收/散射截面在磁场B方向上被非相干地抑制/增强。当B=2 × 10^{17} G时,在物质密度ρ 0 < ρ B < 3ρ 0,温度T < 40 MeV时,非对称性为2-4%.这种不对称性的影响,由于宇称违反或不对称的磁场拓扑结构提出的起源脉冲星踢。

英文摘要:

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 fielld, B. The asymmetry is 2-4% at the matter density ρ_0 < ρ_B < 3ρ_0 and temperature T < 40 MeV for B=2 X 10^{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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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