2013/07/31 by Keita Fukushima, Jason Kumar · 23 citations
Physics and Astronomy · #Annihilation #Anomalous magnetic dipole moment #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Dipole #Electron #Lepton #Muon #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Scalar (mathematics) #astro-ph.CO #hep-ph
paper · pdf · doi:10.1103/physrevd.88.056017
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 88(5) (American Physical Society)
arxiv created 2013/09/15 · openalex publication_date 2013/09/20 · arxiv updated 2013/09/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We consider constraints on simplified models in which scalar dark matter annihilates to light charged leptons through the exchange of charged mediators. We find that loop diagrams will contribute corrections to the magnetic and electric dipole moments of the light charged leptons, and experimental constraints on these corrections place significant bounds on the dark matter annihilation cross section. In particular, annihilation to electrons with an observable cross section would be ruled out, while annihilation to muons is only permitted if the dominant contributions arise from CP-violating interactions.