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arXiv 0911.4273astro-ph.HEastro-ph.CO
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河外宇宙辐射dip模型的冗余失效

Redundant failures of the dip model of the extragalactic cosmic radiation

Antonio Codino

摘要:

分别由卡斯卡德和俄歇实验测量的宇宙辐射的质子通量和化学成分引起了宇宙射线物理学的根本变化。在临界能量区间5 × 10 ** 16 - 10 ** 17 eV内,通过比较由dip模型预测的质子通量和由Kascade测量的质子通量,出现了很大的差异。文中提到并证实了卡斯卡德实验的质子通量测量结果与其他相关的经验观测结果是一致的。它表明,俄歇测量的化学成分由两个独立的程序,使用宇宙核在巨大的空气级联达到的平均深度,是不兼容的倾角模型预测。基于dip模型的失败,这里提出的一个值得注意的结果是,HiRes和Auger实验观察到的高于6 × 10 ** 19 eV的初级宇宙辐射的光谱指数软化,不是由于河外宇宙质子在星系际空间通过反应p γ-> pi 0 p,pi+ n,而是发生在宇宙附近的一些物理现象。

英文摘要:

The proton flux and the chemical composition of the cosmic radiation measured, respectively, by the Kascade and Auger experiments entail radical changes in Cosmic Ray Physics. A large discrepancy emerges by comparing the proton flux predicted by the dip model and that measured by Kascade in the critical energy interval 5 x 10 ** 16 - 10 ** 17 eV. It is mentioned and substantiated that the proton flux measurements of the Kascade experiment are consistent with other pertinent empirical observations. It is shown that the chemical composition measured by Auger by two independent procedures, using the mean depth reached by cosmic nuclei in giant air cascades, is incompatible with that predicted by the dip model. A notable consequence suggested here based on the failures of the dip model is that the spectral index softening of the primary cosmic radiation above 6 x 10 ** 19 eV observed by HiRes and Auger experiments, is not due to the extragalactic cosmological protons suffering energy losses in the intergalactic space via the reactions, p gamma -> pi0 p, pi+ n, but to some physical phenomena occurring in the cosmic vicinity.

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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