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Indirect Searches for Dark Photon-Photon Tridents in Celestial Objects
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abstract
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 $\gamma$-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.
Forward citations
Cited by 6 Pith papers
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Dark Photons in the Early Universe: From Thermal Production to Cosmological Constraints
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Complementary Planetary Spectroscopy Probes of Dark Matter
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Hunting for Dark Photon-Photon Tridents
Dark photon trident decay (A' to 3 gamma) is used with 16 years of INTEGRAL/SPI x-ray data to set 95% CL limits on kinetic mixing for masses of 61-1022 keV, improving earlier constraints by up to two orders of magnitude.
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