| Hlavná stránka > High energy rise of the cosmic ray positron fraction |
| Article | |
| Title | High energy rise of the cosmic ray positron fraction : Possible causes |
| Author(s) | Serpico, Pasquale D (CERN) |
| Publication | 2009 |
| In: | Nucl. Phys. B, Proc. Suppl. 194 (2009) 145-150 |
| In: | New Horizons for Modern Cosmology, Florence, Italy, 19 Jan - 13 Mar 2009, pp.145-150 |
| DOI | 10.1016/j.nuclphysbps.2009.07.014 |
| Subject category | Astrophysics and Astronomy |
| Abstract | In the last year, the PAMELA satellite has suggested an “anomalous” rise with energy of the cosmic ray positron fraction. Several explanations have been proposed: here I recapitulate the basic physics behind astrophysical explanations and summarize the existing issues in interpreting the data via dark matter. In particular, I will discuss observational ways to test different scenarios. |