Indirect searches of dark matter via polynomial spectral features

  title={Indirect searches of dark matter via polynomial spectral features},
  author={Camilo Garcia-Cely and Julian Heeck},
  journal={Journal of Cosmology and Astroparticle Physics},
  pages={023 - 023}
We derive the spectra arising from non-relativistic dark matter annihilations or decays into intermediary particles with arbitrary spin, which subsequently produce neutrinos or photons via two-body decays. Our approach is model independent and predicts spectral features restricted to a kinematic box. The overall shape within that box is a polynomial determined by the polarization of the decaying particle. We illustrate our findings with two examples. First, with the neutrino spectra arising… 

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