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arXiv · 2209.06299

Constraints on light decaying dark matter candidates from 16 years of INTEGRAL/SPI observations

Francesca Calore·Ariane Dekker·Pasquale Dario Serpico·Thomas Siegert
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Abstract

We apply the recently developed analysis of 16 years of INTEGRAL/SPI data including a dark matter spatial template to derive bounds on dark matter candidates lighter than WIMPs (like sterile neutrinos or axion-like particles) decaying into line or continuum electromagnetic final state channels. The bounds obtained are the strongest to date for dark matter masses between $\sim $60 keV and $\sim$16 MeV experiencing two-body decays producing photon lines.

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Francesca Calore, Ariane Dekker, Pasquale Dario Serpico, Thomas Siegert. 2022-09-13. Constraints on light decaying dark matter candidates from 16 years of INTEGRAL/SPI observations. https://doi.org/10.1093/mnras/stad457

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