EPS-HEP 2017

Production of cosmic-ray antinuclei in the Galaxy and background for dark matter searches

Not scheduled

15m

Salone Adriatico (Palazzo del Casinò)

Board: AP-9

Poster Presentation Astroparticle Physics Poster session

Speakers

Nicola Tomassetti (Perugia University & INFN- Perugia) Alberto Oliva (Centro de Investigaciones Energéti cas Medioambientales y Tecno)

Description

Antimatter nuclei in cosmic rays (CRs) represent a promising tool for the indirect search of dark-matter particles in the Galaxy.
At this conference, we report updated calculations for the astrophysical production of CR antiproton, antideuteron, and antihelium nuclei using updated cross-section formulae and new astrophysical constraints inferred from the recent AMS-02 data on CR protons and nuclei. Using these constraints, we also compute upper limits for the flux of CR antinuclei produced and diffusively-shock-accelerate inside Galactic sources.