Dark Matter Day was celebrated again on 31 October

Each year on 31 October all over the world scientists are celebrating Dark Matter Day. The mistery of this form of matter hunts scientists for years. It makes up to 85% of all matter. Different theories about which kind of particle is can be have been proposed. Dozens of experiments are running and planned to check these theories.

Copyright: HEPHY/Shubham Gupta

This Monday young physicist restarted the tradition from previous years of having a Dark Matter Day at Statt-Beisl in WUK. There they made short presentations about what Dark Matter is and a glimp to different experiments HEPHY takes a part. For example, CRESST experiment searches for dark matter using detectors based on crystal scintilators (you could be find them at the venue) which are operated at extremely low temperatures, where particle interactions can heat up the detectors strongly enough in order to be detected.  COSINUS experiment aims to crosscheck a result of DAMA experiment which claims to see/detect annual modulation of Dark Matter. One of HEPHY groups substantially involved in the Belle II experiment at the KEK in Japan searches for Dark Matter and low-mass mediators. And CMS detector at the Large Hadron Collider has a broad physics programme ranging from studying the Standard Model (including the Higgs boson) to searching for extra dimensions and particles that could make up Dark Matter. After short presentations visitors could ask scientists questions about physics and drinking Dark Matter beer. At the venue one could find virtual reality presenting Belle II detector, models of CMS and CRESST detectors.

The HEPHY team would like to thank the visitors for the great interest and the stimulating discussions. We are already looking forward to next year.