Space and Cosmic Ray Physics Seminar

Mon, Mar 4, 2024 4:30 pm - 5:30 pm
Online via Zoom


Title: Antinuclei as probe for exotic physics

Speaker: Michael Kachelriess, Norwegian University of Science and Technology, Torgarden, Norway

Abstract: Antideuteron and antihelium nuclei have been proposed as promising detection channels for dark matter because of the low astrophysical backgrounds expected. After a brief review of the current experimental situation, I discuss some of the various flavors of the coalescence models used to describe the formation of light (anti-) nuclei. In particular, I present results for a newly developed coalescence model based on the Wigner function representations of the produced nuclei states, which includes both the process-dependent size of the formation region of antinuclei, and the momentum correlations of coalescing antinucleons in a semi-classical picture. Therefore this model allows one to calculate in a consistent frame-work the antideuteron and antihelium fluxes both from secondary production and from dark matter annihilations, and I present results for resulting fluxes of antideuterons and antihelium.

Notes: Join the meeting at 4:15 for meet and greet.
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