Direct detection of sub-GeV dark matter

被引：493

作者：

Essig, Rouven ^{[1
]}

Mardon, Jeremy ^{[2
,3
,4
]}

Volansky, Tomer ^{[2
,3
]}

机构：

[1] Stanford Univ, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

[2] Univ Calif Berkeley, Dept Phys, Berkeley Ctr Theoret Phys, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[4] Stanford Univ, Dept Phys, Stanford Inst Theoret Phys, Stanford, CA 94305 USA

来源：

PHYSICAL REVIEW D | 2012年 / 85卷 / 07期

关键词：

NEUTRINO EXPERIMENTS; EMISSION;

D O I：

10.1103/PhysRevD.85.076007

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Direct detection strategies are proposed for dark matter particles with MeV to GeV mass. In this largely unexplored mass range, dark matter scattering with electrons can cause single-electron ionization signals, which are detectable with current technology. Ultraviolet photons, individual ions, and heat are interesting alternative signals. Focusing on ionization, we calculate the expected dark matter scattering rates and estimate the sensitivity of possible experiments. Backgrounds that may be relevant are discussed. Theoretically interesting models may be within reach using existing data and ongoing direct detection experiments. Significant improvements in sensitivity should be possible with dedicated experiments, opening up a window to new regions in dark matter parameter space.

引用

页数：9

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