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arXiv 1010.6097astro-ph.HEhep-phhep-th
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宇宙射线II的加速和粒子场相互作用:计算

Acceleration and Particle Field Interactions of Cosmic Rays II: Calculations

A. Tawfik, A. Saleh, M. T. Ghoneim, A. Hady

摘要:

基于宇宙带电粒子与不同位形的电磁(等离子体)场之间存在不同类型的电磁相互作用的一般加速模型,研究了超高能宇宙射线。假设等离子体场在空间和时间上都是变化的。众所周知的费米加速度被排除在外。为了简单起见,假设由于不同的物理过程的能量损失是可以忽略的小。在四种类型的电磁场中计算等离子体扇区可用的能量。已经发现,在时变磁场中的漂移是非常有能量的。能量尺度远远超过了Greisen-Zatsepin-Kuzmin(GZK)截止值。时变电场中的极化漂移也能将宇宙射线的能量提高到一个极值。它可以与Hillas机制相比较。空间变化磁场中的漂移几乎与极化漂移一样强。在非均匀磁场和消失的电场中,曲率漂移很弱。

英文摘要:

Based on the generic acceleration model, which suggests different types of electromagnetic interactions between the cosmic charged particles and the different configurations of the electromagnetic (plasma) fields, the ultra high energy cosmic rays are studied. The plasma fields are assumed to vary, spatially and temporally. The well-known Fermi accelerations are excluded. Seeking for simplicity, it is assumed that the energy loss due to different physical processes is negligibly small. The energy available to the plasma sector is calculated in four types of electromagnetic fields. It has been found that the drift in a time--varying magnetic field is extremely energetic. The energy scale widely exceeds the Greisen-Zatsepin-Kuzmin (GZK) cutoff. The polarization drift in a time--varying electric field is also able to raise the energy of cosmic rays to an extreme value. It can be compared with the Hillas mechanism. The drift in a spatially--varying magnetic field is almost as strong as the polarization drift. The curvature drift in a non--uniform magnetic field and a vanishing electric field is very weak.

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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