Description

Dark matter is believed to make up most of the matter of our Universe, but its particle origin remains a mystery. A favorite candidate is the so-called Weakly Interacting Massive Particle (WIMP), but a diverse set of experiments are rapidly closing the available parameter space for WIMPs. I will show that small changes to the assumptions about how dark matter was produced in the early Universe lead to very different dark matter masses and experimental prospects. I will also describe how the recent tentative detection of cosmological 21cm absorption may be a sign of an exotic population of soft photons, which could have been produced by dark matter

Details

Title
Phases of Particle Dark Matter
Creator
University of California, Berkeley. Dept. of Physics
Published
Berkeley, CA, University of California, Berkeley, Dept. of Physics, October 8, 2018
Link to Content
UC Berkeley Library Online Video Collection.
Full Collection Name
Physics Colloquia
Type
Video
Format
Lecture.
Extent
1 streaming video file
Other Physical Details
digital, sd., col.
Archive
Physics Library
Note
Recorded at a colloquium held on October 8, 2018, sponsored by the Dept. of Physics, University of California, Berkeley.
originally produced as an .mts file in 2018
Speakers: Joshua Ruderman.
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