Speaker
Description
The recently reported KM3-230213A neutrino event, observed with the KM3NeT/ARCA detector, represents the most energetic neutrino observed to date. It has stimulated significant interest in possible explanations of its origin, including those beyond conventional astrophysical scenarios. In this contribution, we investigate whether the event could originate from the decay of a heavy dark matter particle with a mass above the PeV scale. We evaluate the expected signal distributions for several decay channels and determine the regions of dark matter mass and lifetime compatible with the observation. We also assess the relative contributions from galactic and extragalactic dark matter and compare the preferred parameter space with existing limits from neutrino telescopes and gamma-ray observations.
| Main Contribution topic | Indirect detection |
|---|---|
| Secondary contribution topic | Astrophysical observations |