SMuK 2023 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

T: Fachverband Teilchenphysik

T 24: Invited Overview Talks II

T 24.3: Hauptvortrag

Dienstag, 21. März 2023, 12:00–12:30, HSZ/AUDI

Galactic cosmic rays: What have we learned and what's next? — •Philipp Mertsch — Institute for Theoretical Particle Physics and Cosmology (TTK), RWTH Aachen University, Sommerfeldstr. 16, 52074 Aachen, Germany

Cosmic rays constitute an important ingredient in the galactic ecosystem and hold lessons beyond the Milky Way, for instance in regulating galaxy formation and evolution. In addition, cosmic rays lend themselves to searches for new physics, like dark matter or primordial antimatter. All of these studies, however, require answering the century-old question of cosmic ray origin. Over the last ten years, there has been an abundance of new data from space-based experiments like AMS-02, CALET and DAMPE. Modelling of these data allow inferences on the various types of cosmic ray sources and the conditions determining their transport, for instance galactic magnetic fields. What emerges is a rather complex picture and thus existing models need to be revised, if not completely overhauled. I will highlight the lessons learned and discuss the open questions and what kind of instrumentation is required for answering them.