Direct Detection of Sub-GeV Dark Matter
Description/Abstract
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 can be probed with existing technologies, and may even be within reach using 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.
| Creator/Author: | Essig, Rouven ; Mardon, Jeremy ; Volansky, Tomer |
|---|---|
| Publication Date: | 2012 Mar 20 |
| OSTI Identifier: | OSTI ID: 1036970 |
| Report Number(s): | SLAC-PUB-14538 |
| DOE Contract Number: | AC02-76SF00515 |
| Other Number(s): | Other: arXiv:1108.5383; TRN: US1201508 |
| Resource Type: | Journal Article |
| Resource Relation: | Journal Name: Submitted to Physical Review |
| Research Org: | SLAC National Accelerator Laboratory (SLAC) |
| Sponsoring Org: | USDOE |
| Subject: | 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DETECTION; ELECTRONS; FOCUSING; IONIZATION; NONLUMINOUS MATTER; OPENINGS; PHOTONS; SCATTERING; SENSITIVITY |
| Related Subject: | Astrophysics, Phenomenology-HEP,HEPPH, HEPEX, ASTRO |
| Country of Publication: | United States |
| Language: | English |
| Format: | Size: 9 pages |
| Availability: | http://www.slac.stanford.edu/cgi-wrap/pubpage?slac-pub-14538.html |
| Update Date: | 2012 Dec 05 |
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