PAMELA through a Magnetic Lens
High Energy Astrophysical Phenomena
2012-11-06 v2 High Energy Physics - Phenomenology
Abstract
The PAMELA satellite has observed an excess in the positron to electron ratio above theoretical predictions in the range 10 - 100 GeV that increases with energy. We propose that the excess is not due to a change in the local interstellar spectrum, but is due to heliospheric modulation. We motivate this from the known form of the heliospheric magnetic field and predict that the excess will disappear when we enter a period of solar maximum activity.
Cite
@article{arxiv.1005.4668,
title = {PAMELA through a Magnetic Lens},
author = {J. P. Roberts},
journal= {arXiv preprint arXiv:1005.4668},
year = {2012}
}
Comments
15 pages, 5 figures, updated to match published version