Dark Matter Results from First 98.7 Days of Data from the PandaX-II Experiment
University of Maryland, College Park · Shanghai Jiao Tong University · +8 more institutions
Abstract
We report the weakly interacting massive particle (WIMP) dark matter search results using the first physics-run data of the PandaX-II 500 kg liquid xenon dual-phase time-projection chamber, operating at the China JinPing underground laboratory. No dark matter candidate is identified above background. In combination with the data set during the commissioning run, with a total exposure of 3.3×10^{4} kg day, the most stringent limit to the spin-independent interaction between the ordinary and WIMP dark matter is set for a range of dark matter mass between 5 and 1000 GeV/c^{2}. The best upper limit on the scattering cross section is found 2.5×10^{-46} cm^{2} for the WIMP mass 40 GeV/c^{2} at 90% confidence level.
Citation impact
- FWCI
- 190.15
- Percentile
- 100%
- References
- 27
Authors
54Topics & keywords
- WIMP
- Physics
- Dark matter
- Time projection chamber
- Light dark matter
- Particle physics
- Massive particle
- Weakly interacting massive particles