COMPOSITE DARK MATTER AND PUZZLES OF DARK MATTER SEARCHES

被引：50

作者：

Khlopov, M. Y. ^{[1
,2
,3
]}

机构：

[1] Virtual Inst Astroparticle Phys, APC Lab, F-75205 Paris 13, France

[2] Natl Res Nucl Univ, Moscow Engn Phys Inst, Moscow 115409, Russia

[3] Ctr Cosmoparticle Phys Cosm, Moscow 115409, Russia

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2010年 / 19卷 / 8-10期

关键词：

Elementary particles; nuclear reactions; dark matter; LIMITS; PARTICLES; WINDOW;

D O I：

10.1142/S0218271810017962

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Positive results of dark matter searches in DAMA/NaI and DAMA/LIBRA experiments, being put together with the results of other groups, can imply nontrivial particle physics solutions for cosmological dark matter. Stable particles with charge -2, bound with primordial helium in O-helium "atoms" (OHe), represent a specific warmer than cold nuclear-interacting form of dark matter. Slowed down in the terrestrial matter, OHe is elusive for direct methods of underground dark matter detection used in cryogenic experiments. However the radiative capture of OHe by Na and I nuclei can lead to annual variations of energy release in the energy interval of 2-5 keV in DAMA/NaI and DAMA/LIBRA experiments.

引用

页码：1385 / 1395

页数：11

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