MeV dark matter: Has it been detected?

被引：407

作者：

Boehm, C ^{[1
]}

Hooper, D

Silk, J

Casse, M

Paul, J

机构：

[1] Univ Oxford, Dept Astrophys, Denys Wilkinson Lab, Oxford OX1 3RH, England

[2] CEA Saclay, DAPNIA, Serv Astrophys, F-91191 Gif Sur Yvette, France

[3] Inst Astrophys Paris, F-75014 Paris, France

[4] Univ Paris 07, Federat Rech Astroparticule & Cosmol, F-75251 Paris 05, France

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.92.101301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页码：101301 / 1

页数：4

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