MeV Dark Matter: Has It Been Detected?

2003/09/30 by Céline Bœhm, Celine Boehm, Dan Hooper +4 · 11 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Galaxies: Formation, Evolution, Phenomena #astro-ph #hep-ph

paper · pdf · doi:10.1103/physrevlett.92.101301

published as Phys.Rev.Lett.92:101301,2004 · 4 pages, 1 figure

arxiv created 2003/10/06 · openalex publication_date 2004/03/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

We discuss the possibility that the recent detection of 511 keV gamma rays from the galactic bulge, as observed by INTEGRAL, is a consequence of low mass (1-100 MeV) particle dark matter annihilations. We discuss the type of halo profile favored by the observations as well as the size of the annihilation cross section needed to account for the signal. We find that such a scenario is consistent with the observed dark matter relic density and other constraints from astrophysics and particle physics.

Citations

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• Supersymmetry at ordinary energies. Masses and conservation laws

Cited by

• Predictions of the causal entropic principle for environmental conditions of the universe
• Enhanced rare pion decays from a model of MeV dark matter
• Metastable dark matter mechanisms for INTEGRAL 511 keVγrays and DAMA/CoGeNT events
• An asymmetric distribution of positrons in the Galactic disk revealed by γ-rays
• Effects of dark matter decay and annihilation on the high-redshift 21 cm background
• GRBs and the 511 keV emission of the Galactic bulge
• 511 keV gamma ray from moduli decay in the Galactic bulge
• Constraints on light dark matter andUbosons, fromψ,Υ,K+,π°,ηandη′decays
• Signature of sub GeV dark matter particles at the LHC and the Tevatron
• STUDY OF THE ELECTROMAGNETIC TRANSITIONS J/ψ → P l+l- AND PROBE DARK PHOTON
• Astrophysical constraints from gamma-ray spectroscopy