There is
still no detection of individual dark matter particles. Really, there
couldn’t be. As reported in the paper submitted to Physical Review
Letters, this latest work was simply doing a better job of calibrating
the detector to better understand the two light signals produced, in
turn to better reject the background from non-WIMP particles interacting
in the xenon, of which there are many. Finding WIMPS amounts to searching for a very small needle in a huge haystack.
