MeV dark matter: has it been detected?

MeV dark matter: has it been detected?

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 annihil...

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Veröffentlicht in:Physical review letters 2004-03, Vol.92 (10), p.101301-101301, Article 101301
Hauptverfasser: Boehm, Céline, Hooper, Dan, Silk, Joseph, Casse, Michel, Paul, Jacques
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container_title Physical review letters
container_volume 92
creator Boehm, Céline
Hooper, Dan
Silk, Joseph
Casse, Michel
Paul, Jacques
description 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.
doi_str_mv 10.1103/PhysRevLett.92.101301
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title MeV dark matter: has it been detected?
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