Dark matter detector

How to catch a WIMP

Photomultiplier tubes capable of detecting a single photon of light line the top and bottom of the LUX dark matter detector. They will record the position and intensity of collisions between dark matter particles and xenon nuclei. Credit: Photos by Matt Kapust/Sanford Underground Research Facility

The first 90-day run of the Large Underground Xenon (LUX) experiment showed the detector to be the most sensitive in the world. The experiment did not detect dark matter particles during its initial run, but it has ruled out “possible” findings elsewhere. The research team will fine-tune the detector’s sensitivity and begin a 300-day run in 2014.