LUX-ZEPLIN detects signal standard WIMPs cannot explain

The LUX-ZEPLIN experiment has recorded a single flash of light that could be the first direct detection of dark matter. The 2.6-sigma result falls short of the 5-sigma discovery threshold, and the event's higher energy does not fit standard WIMP models.

• Detector holds 7 metric tons of liquid xenon nearly a mile underground
• Chance of known interference estimated at 0.5% (2.6 sigma)
• Particle physicists typically require 5 sigma to claim a discovery
• Team is analyzing 700 days of data for more events