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General calculation of the cross section for dark matter annihilations into two photons

par Garcia Cely, Camilo Alfredo ;Rivera, A O
Référence Journal of Cosmology and Astroparticle Physics, 2017, 3, 054
Publication Publié, 2017-03

Article révisé par les pairs

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Résumé :

Assuming that the underlying model satisfies some general requirements such as renormalizability and CP conservation, we calculate the non-relativistic one-loop cross section for any self-conjugate dark matter particle annihilating into two photons. We accomplish this by carefully classifying all possible one-loop diagrams and, from them, reading off the dark matter interactions with the particles running in the loop. Our approach is general and leads to the same results found in the literature for popular dark matter candidates such as the neutralinos of the MSSM, minimal dark matter, inert Higgs and Kaluza-Klein dark matter.