2016/11/30 by Camilo García-Cely, Camilo Garcia-Cely, Andrés Rivera +1
Physics and Astronomy · #Astrophysics #Cosmology #Dark Matter and Cosmic Phenomena #Dark energy #Dark fluid #Dark matter #Dark photon #Higgs boson #Hot dark matter #Light dark matter #Particle physics #Particle physics theoretical and experimental studies #Photon #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Scalar field dark matter #Warm dark matter #hep-ph
paper · pdf · doi:10.1088/1475-7516/2017/03/054
Published version. Results and examples are available at http://www.desy.de/~camilog/gamma-ray-lines.html
openalex publication_date 2017/03/28 · arxiv created 2017/10/27 · arxiv updated 2017/10/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.