Scientists looking for dark matter face a serious challenge: No one knows what dark matter particles look like. So their search covers a wide range of possible traits — different masses, different probabilities of interacting with regular matter. Today, scientists on the Cryogenic Dark Matter Search experiment, or CDMS, announced that they have shifted the border of this search down to a dark-matter particle mass and rate of interaction that has never been probed.
The analysis, led by Adam Anderson, an MIT graduate student in physics, is the first dark matter result using a new sensor technology — developed, in part, at MIT — that shows much better rejection of background events than the previous generation of CDMS detectors. The work was presented today at the Symposium on Sources and Detection of Dark Matter and Dark Energy in the Universe, held at the University of California at Los Angeles.
“We’re pushing CDMS to as low mass as we can,” says Fermilab physicist Dan Bauer, the project manager for CDMS. “We’re proving the particle detector technology here.” Continue reading the article on MIT news.