URL: https://physikseminar.desy.de/hamburg/colloquia_in_2025/9_september_2025/@@siteview
Breadcrumb Navigation
The (un)reasonable elusiveness of dark matter
Torsten Bringmann (University of Oslo)
Auditorium (Bldg 5, DESY Hamburg) and Zoom, 16:00h
Only about 15% of the total matter content of the universe consists of known forms of matter. After decades of experimental efforts, the leading hypothesis for the missing part - namely a new type of weakly interacting massive particle - is starting to become seriously pressured. As a result, the true nature of dark matter is more elusive now than ever. In this talk, I will start with a pedagogic review of some of the most convincing pieces of evidence that we currently have for the existence of dark matter. I will then highlight new model building avenues that may explain why traditional searches have, so far, failed to see any signals. In fact, I will argue that it might well be generally impossible to directly detect or produce any dark matter particles in the laboratory - but that cosmological observations still have the potential to conclusively pinpoint some of their properties.
We invite you to attend the presentation in person at the DESY Auditorium. We will also offer a webcast for this colloquium.
Connection details at https://desy.zoom.us/j/99616528733
Meeting ID: 996 1652 8733
Meeting Password: 733220
