Astronomy Talks: Neutrino Mass from Cosmology

October 21, 2020, 3:00 pm

3:30 pm

Neutrinos are the least understood particles of the Standard Model; we don’t even know their masses! Yet they play a crucial role in events such as nuclear fusion and radioactive decays. They’re incredibly shy, and very infrequently interact with matter in ways that can be detected directly (good thing too, otherwise the 100 trillion neutrinos that pass through your body every second could very well kill you). However, during the early universe neutrinos were produced in high abundances, and as a result they impact both the expansion history of the Universe, and the clustering of galaxies through their gravitational interactions. Come learn about how we use information about the largest length scales to study some of the lightest particles!


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The UC Berkeley Department of Astronomy believes in the importance of engaging with our local communities and is currently working to develop new programs to facilitate these efforts. We aim to invest in the next generation of Astronomers by: Creating informational tools and materials with the intent to aide in the understanding of Astronomy-related concepts and topics. Providing more interactive, face-to-face opportunities for those who otherwise would not have ready access to the various types of resources in our employ. Ultimately, our goal is to provide a launching pad for those who possess a curiosity in our field of study and to encourage the burgeoning interests of individuals of all ages.