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From a Berkeley Lab press release (July 21, 2016):

Scientists with the Large Underground Xenon (LUX) dark matter experiment, which operates beneath a mile of rock at the Sanford Underground Research Facility in the Black Hills of South Dakota, have completed their search for the missing matter of the Universe. (See The Cosmos, Section 16.4c, p. 430.)

Although LUX’s sensitivity far exceeded the original expectations of the experiment,  it yielded no trace of a dark matter particle. LUX’s extreme sensitivity makes the team confident that if dark matter particles had interacted with the LUX’s xenon target, the detector would almost certainly have seen them. These new limits on dark matter detection will allow scientists to eliminate many potential models for dark matter particles, offering critical guidance for the next generation of dark matter experiments.

While the LUX experiment successfully eliminated a large swath of mass ranges and interaction-coupling strengths where so-called WIMPs might exist, physicists believe the WIMP model itself remains alive and viable.

Links: full LBL press release, LUX homepage.

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