2012/04/30 by James M. Cline, Andrew R. Frey · 12 citations
Physics and Astronomy · #Astrophysics #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark energy #Dark matter #Gauge (firearms) #Hidden sector #Light dark matter #Metastability #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Scalar field dark matter #Standard Model (mathematical formulation) #Weakly interacting massive particles #astro-ph.CO #astro-ph.GA #hep-ph
paper · pdf · doi:10.1002/andp.201200082
published in Annalen der Physik 524(9-10), 579-590 (Wiley) · 16 pages, 3 figures; v2: improved version, accepted for Annalen der Physik special issue DARK MATTER edited by M. Bartelmann and V. Springel (2012)
arxiv created 2012/07/04 · openalex publication_date 2012/07/30 · arxiv updated 2015/06/04 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Abstract The authors construct a simple U(1) hidden sector model of metastable dark matter that could explain excess 511 keV gamma rays from the galactic center as observed by INTEGRAL, through inelastic scattering of dark matter followed by its decay. Although the model is highly constrained, it naturally accommodates dark matter with mass and cross section in the range suggested by the CoGeNT and CRESST experiments. The dark gauge boson that mediates the interactions with standard model matter has a mass of several hundred MeV, and might be discovered by heavy photon detection experiments, including APEX, MAMI and HPS.