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hep-ph2025
Parametric Coincidence in the Baryon to Dark Matter Ratio from Affleck-Dine Baryogenesis and UV Freeze-in Dark Matter
Jae Hyeok Chang, Chang Sub Shin, James Unwin
We highlight that the observed concurrence between the baryon and dark matter relic densities can be explained via a parametric coincidence between two distinct production mechanis…
hep-ph2025★ 8 cited
Superheavy Supersymmetric Dark Matter for the origin of KM3NeT Ultra-High Energy signal
Yongsoo Jho, Seong Chan Park, Chang Sub Shin
We propose an explanation for the recently reported ultra-high-energy neutrino signal at KM3NeT, which shows no clear association with known astrophysical sources. While decaying d…