The DarkSide-50 experiment at the Gran Sasso National Laboratory in Italy has completed its experimental run. The experiment did not find any potential dark matter particles, but it did demonstrate that the technology could reject “false positive” signals from natural radioactivity or other sources. That will give researchers more confidence in data from the next, larger experiment, DarkSide-20k. Four UC Davis physicists – Associate Professor Emilija Pantic, postdoctoral researchers Tessa Johnson and Luca Pagani, and graduate student Ben Schlitzer – are members of the DarkSide-50 research collaboration. Read more at UC Davis News.