Indirect Searches for Dark Photon-Photon Tridents in Celestial Objects
arxiv(2024)
摘要
We model and constrain the unique indirect detection signature produced by
dark matter particles that annihilate through a U(1) gauge symmetry into dark
photons that subsequently decay into three-photon final states. We focus on
scenarios where the dark photon is long-lived, and show that γ-ray
probes of celestial objects can set strong constraints on the dark
matter/baryon scattering cross section that in many cases surpass the power of
current direct detection constraints, and in some cases even peer into the
neutrino fog.
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