Strong New Limits on Light Dark Matter from Neutrino Experiments
| Autor: | Cappiello, Christopher V., Beacom, John F. |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | Phys. Rev. D 100, 103011 (2019) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.100.103011 |
| Popis: | The non-detection of GeV-scale WIMPs has led to increased interest in more general candidates, including sub-GeV dark matter. Direct detection experiments, despite their high sensitivity to WIMPs, are largely blind to sub-GeV dark matter. Recent work has shown that cosmic-ray elastic scattering with sub-GeV dark matter would both alter the observed cosmic ray spectra and produce a flux of relativistic dark matter, which would be detectable with traditional dark matter experiments as well as larger, higher-threshold detectors for neutrinos. Using data, detectors, and analysis techniques not previously considered, we substantially increase the regions of parameter space excluded by neutrino experiments for both dark matter-nucleon and dark matter-electron elastic scattering. We also show how to further improve sensitivity to light dark matter. Comment: Main text: 14 pages, 9 figures. Updated with errata describing a couple minor numerical errors, our corrections, and our updated results |
| Databáze: | arXiv |
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