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arXiv · 0904.2371

Cosmic Ray Proton Background Could Explain ATIC Electron Excess

A. R. Fazely·R. M. Gunasingha·S. V. Ter-Antonyan
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Abstract

We show that the excess in the Galactic electron flux recently published by Chang, et al. (Nature, 20 Nov. 2008) can have a simple methodical origin due to a contribution from misidentified proton induced electron-like events in the ATIC detector. A subtraction of the cosmic ray proton component from the published ATIC electron flux eliminates this excess in the range of 300 to 800 GeV.

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A. R. Fazely, R. M. Gunasingha, S. V. Ter-Antonyan. 2009-05-12. Cosmic Ray Proton Background Could Explain ATIC Electron Excess. https://arxiv.org/abs/0904.2371

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