Once particles of dark matter are identified in the laboratory, their properties can be analyzed and compared with the predictions of string theory. (discovermagazine.com)
This problem would not arise if the individual particles of dark matter had more mass, because then they would find it harder to escape from the gravitational grip of the galaxy. (newscientist.com)
Now, many physicists expect that within 5 to 10 years they will finally discover particles of dark matter — that is, if they haven't already done so. (science.sciencemag.org)