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

共 33 条

[11] SUPERSYMMETRIC RELICS FROM THE BIG-BANG
ELLIS, J
HAGELIN, JS
NANOPOULOS, DV
OLIVE, K
SREDNICKI, M
[J]. NUCLEAR PHYSICS B, 1984, 238 (02) : 453 - 476
[12] SPONTANEOUSLY BROKEN SUPERSYMMETRIC THEORIES OF WEAK, ELECTROMAGNETIC AND STRONG INTERACTIONS
FAYET, P
[J]. PHYSICS LETTERS B, 1977, 69 (04) : 489 - 494
[13] ETERNAL ANNIHILATIONS - NEW CONSTRAINTS ON LONG-LIVED PARTICLES FROM BIG-BANG NUCLEOSYNTHESIS
FRIEMAN, JA
KOLB, EW
TURNER, MS
[J]. PHYSICAL REVIEW D, 1990, 41 (10): : 3080 - 3085
[14] CONSTRAINT ON THE PHOTINO MASS FROM COSMOLOGY
GOLDBERG, H
[J]. PHYSICAL REVIEW LETTERS, 1983, 50 (19) : 1419 - 1422
[15] SEARCH FOR THE ANOMALOUS PRODUCTION OF SINGLE PHOTONS IN E+E- ANNIHILATION AT SQUARE-ROOT S=29 GEV
HEARTY, C
ROTHBERG, JE
YOUNG, KK
JOHNSON, AS
WHITAKER, JS
WILSON, RJ
BARTHA, G
BURKE, DL
EXTERMANN, P
GARBINCIUS, PH
HAWKINS, CA
JONKER, MJ
KELLER, L
MATTEUZZI, C
ROE, NA
STEELE, TR
HOLLEBEEK, RJ
[J]. PHYSICAL REVIEW D, 1989, 39 (11): : 3207 - 3226
[16] Supersymmetric dark matter - how light can the LSP be?
Hooper, D
Plehn, T
[J]. PHYSICS LETTERS B, 2003, 562 (1-2) : 18 - 27
[17] Positron annihilation radiation from the inner Galaxy
Kinzer, RL
Milne, PA
Kurfess, JD
Strickman, MS
Johnson, WN
Purcell, WR
[J]. ASTROPHYSICAL JOURNAL, 2001, 559 (01) : 282 - 295
[18] KNODLSEDER J, 2003, ASTRON ASTROPHYS, V407, pL55
[19] KNODLSEDER J, IN PRESS ASTRON ASTR
[20] POSITRONS FROM ACCELERATED PARTICLE INTERACTIONS
KOZLOVSKY, B
LINGENFELTER, RE
RAMATY, R
[J]. ASTROPHYSICAL JOURNAL, 1987, 316 (02) : 801 - 818

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