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T: Fachverband Teilchenphysik
T 16: Search for Dark Matter I
T 16.3: Vortrag
Montag, 16. März 2026, 16:45–17:00, AM 00.014
Modeling of signatures from charged leptonic products of dark matter annihilation — •Milena Brütting1,2, Athithya Aravinthan1,2, Julia Becker Tjus1,2,3, Julien Dörner1,2, and Jannis Wagner1,2 — 1Theoretical Physics IV, Ruhr-University Bochum, Germany — 2Ruhr Astroparticle and Plasma Physics Center (RAPP Center), Bochum, Germany — 3Department of Space, Earth and Environment, Chalmers University of Technology, Gothenburg, Sweden
The indirect search for Dark Matter (DM) has been challenging for decades due to the need for low-background environments and the ambiguity between potential DM signals and conventional astrophysical emission. A promising strategy is to model and compare signatures from different DM annihilation channels with astrophysical emission in a synthetic dwarf galaxy assuming the same total energy from both DM and astrophysical sources.
The prompt emission of DM annihilation and the secondary emission from interactions of charged products (such as electrons and positrons) with the ambient fields are modeled to help differentiate the DM and the astrophysical signal. Simulations are performed with the open-source code CRPropa 3.2, which provides a flexible and self-consistent modeling framework for particle propagation. Results reveal morphological differences between both sources. We test different DM annihilation channels, such as bottom quarks, top quarks and W gauge bosons, as well as DM density profiles, such as Einasto, Burkert and Navarro-Frenk-White.
Keywords: Dark Matter