Cosmic-ray antimatter, and what we can learn from it
Kfir Blum (Weizmann Institute, Israel)

Over the last decade space-borne experiments have delivered new measurements of cosmic-ray (CR) antiprotons and positrons. Where does this antimatter come from? Does it contain evidence for new physics, or exotic astrophysical phenomena? What does it teach us about high-energy processes in the Galaxy? I will describe an attempt to understand cosmic-ray antimatter from first-principles, derive key lessons for astrophysics, and highlight open questions. To conclude I will show how analyses of cosmic-ray composite antinuclei — anti-helium and anti-deuterium — connect to very recent progress at the LHC and to basic questions of coalescence and flow in high multiplicity hadronic collisions.