Abstract
We report on the first dark-matter (DM) search results from PandaX-I, a low threshold dual-phase xenon experiment operating at the China JinPing Underground Laboratory. In the 37-kg liquid xenon target with 17.4 live-days of exposure, no DM particle candidate event was found. This result sets a stringent limit for low-mass DM particles and disfavors the interpretation of previously-reported positive experimental results. The minimum upper limit, 3.7 × 10−44 cm2, for the spin-independent isoscalar DM-particle-nucleon scattering cross section is obtained at a DM-particle mass of 49GeV/c2 at 90% confidence level.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2024-2030 |
| Number of pages | 7 |
| Journal | Science China: Physics, Mechanics and Astronomy |
| Volume | 57 |
| Issue number | 11 |
| DOIs | |
| State | Published - Nov 2014 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy
Keywords
- dark matter
- direct detection
- xenon
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