Galactic Cosmic Rays Anomalies

Abstract

Current measurements of galactic cosmic rays have reached an impressive precision for many species, and extend on wide energy ranges. Some species such as the high energy positron spectrum, the light primary and secondary nuclei and, possibly, the high energy part of the antiproton spectrum, are not straightforwardly explained by current models. The latter, indeed, are often calibrated on pre-existing cosmic data themselves. We outline how these anomalies, or effects in the data not straightforwardly explained by state-of-the-art theories, can open new doors in our understanding of the Galaxy and its particle components.