Learn about cutting-edge research happenin g at UC Berkeley\, directly from the scientists themselves. Join Popping t he Science Bubble on Tuesday\, September 15th at 5:30 pm at the Central Li brary in the second floor Mystery Room or join us virtually on Zoom: http: //bit.ly/PtSBBerkeley (register at the link).
\nThis month's present ations will be:
\nSearching for Dark Matter: Axions! &mdash\; Shreya Puranam\, Physics
\nOnly 15% of the matte r in the universe is the matter that makes us up (baryonic matter). We ref er to the other 85% as dark matter. While we have known about the existenc e of dark matter through observations of galaxy motion since the mid 1900' s\, we have yet to directly detect and determine what makes it up. One com pelling candidate that I search for is a particle called the axion. During this talk\, I will show why we know dark matter must exist\, why the axio n is a good candidate\, and how we actually search for it.
\nWhere Did All the Antimatter Go? &mdash\; Charlie Hultquist\,
We're used to regular matter -- a positively charge d nucleus surrounded by negatively charged electrons. Antimatter is the re verse -- a negative nucleus surrounded by positive electrons (positrons). We believe that just after the Big Bang\, equal amounts of matter and anti matter were present in the universe. In contrast\, today's universe is fil led with an abundance of matter. To understand where all this antimatter w ent\, we use particle accelerators to recreate conditions in the early uni verse and look for matter-antimatter asymmetric processes.
\nLearn m ore at the Scienc e Bubble website.
\nWatch past talks on YouTube.
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