Dark matter searches with cosmic rays in the light of AMS-02

par Alessandro Cuoco (LAPTh)

jeudi 25 oct. 2018, 14:00 → 15:00 Europe/Paris

Petit Amphi (LAPTh)

Dark matter, an elusive component permeating the Cosmos, has been observed, so far, only through its gravitational effects. A complementary mean to investigate  dark matter is through  indirect searches via cosmic rays. In particular, in the talk, I will focus on the case of cosmic-ray antiprotons, which have been recently measured by the AMS-02 experiment with high precision. I will discuss the results of a recent analysis where we use the new data and we interpret them within the framework  of a new updated cosmic-ray propagation model consistent with the AMS-02 data. Interestingly, the analysis show a significant  hint for the presence of  a dark matter particle with  mass of about 100 GeV and annihilation cross section close to the thermal relic value. Finally, I will discuss possible systematic effects and the work required to address them.