Astroparticle Theory:. Some New Insights Into High Energy Cosmic Rays

Astroparticle Theory:. Some New Insights Into High Energy Cosmic Rays
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天体粒子理论:。

DOI:
10.1142/s0217751x04019044
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发表时间:
2003
影响因子:
1.6
通讯作者:
E. Roulet
E. Roulet
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
E. Roulet

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讨论了近年来在高能宇宙射线传播方面取得的一些新进展。特别是,它显示了在传输扩散方程中包含漂移效应如何自然地导致膝盖,第二个膝盖以及膝盖和脚踝之间的组成和各向异性的观察行为的解释。结果表明,在1014 eV以上的微中子通量预测中,膝部以上成分变重的趋势有显著的影响。本文还讨论了磁透镜对踝关节以上能量宇宙射线的影响,分析了低能量下的扩散行为和高能量下的小偏转的不同机制的主要特征。
Some new developments obtained in the last few years concerning the propagation of high energy cosmic rays are discussed. In particular, it is shown how the inclusion of drift effects in the transport diffusion equations leads naturally to an explanation for the knee, for the second knee and for the observed behavior of the composition and anisotropies between the knee and the ankle. It is shown that the trend towards a heavier composition above the knee has significant impact on the predicted neutrino fluxes above 1014 eV. The effects of magnetic lensing on the cosmic rays with energies above the ankle are also discussed, analyzing the main features of the different regimes that appear between the diffusive behavior that takes place at lower energies and the regime of small deflections present at the highest ones.
DOI: --
发表时间: 2000
期刊: Astro Particle Physics 13
影响因子: --
作者:
M.Teshima;他
通讯作者: 他