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Light Dark Matter Search with a High-Resolution Athermal Phonon Detector Operated Above Ground
- Source :
- Phys. Rev. Lett. 127, 061801 (2021)
- Publication Year :
- 2020
-
Abstract
- We present limits on spin-independent dark matter-nucleon interactions using a $10.6$ $\mathrm{g}$ Si athermal phonon detector with a baseline energy resolution of $\sigma_E=3.86 \pm 0.04$ $(\mathrm{stat.})^{+0.19}_{-0.00}$ $(\mathrm{syst.})$ $\mathrm{eV}$. This exclusion analysis sets the most stringent dark matter-nucleon scattering cross-section limits achieved by a cryogenic detector for dark matter particle masses from $93$ to $140$ $\mathrm{MeV}/c^2$, with a raw exposure of $9.9$ $\mathrm{g}\cdot\mathrm{d}$ acquired at an above-ground facility. This work illustrates the scientific potential of detectors with athermal phonon sensors with eV-scale energy resolution for future dark matter searches.<br />Comment: 7 pages, 4 figures, this version includes ancillary files from official data release
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. Lett. 127, 061801 (2021)
- Publication Type :
- Report
- Accession number :
- edsarx.2007.14289
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevLett.127.061801