Determining the Neutrino Lifetime from Cosmology
Yuhsin Tsai (University of Maryland)
Abstract: In the next decade, improvements in the CMB and Large Scale Structure (LSS) measurements will make the universe an excellent laboratory for new physics in the neutrino sector. Besides knowing the sum of neutrino masses, we can better answer questions about neutrino properties, such as how long the SM neutrinos can live? In this talk, I will explain the LSS signals of neutrino decay and show that the future tomographic survey of LSS can improve the lifetime bound on neutrinos to seven orders of magnitude, from order 10 years to 10^8 years. If neutrinos decay on timescales less than O(100) million years, the observations may allow, not just the first measurement of the sum of neutrino masses, but also the determination of the neutrino lifetime from cosmology.
Video of Talk: https://www.youtube.com/watch?v=x9pMepDjdN8
Paper: [2002.08401] Determining the Neutrino Lifetime from Cosmology, by Zackaria Chacko, Abhish Dev, Peizhi Du, Vivian Poulin, Yuhsin Tsai
cosmology and nongalactic astrophysicsgeneral relativity and quantum cosmology
Audience: advanced learners
CosmoConβ - Cosmology from Home
Series comments: Cosmology from Home is an online cosmology conference. One of its features are pre-recorded talks, publicly available at its YouTube channel.
| Organizers: | Niko Sarcevic, Shaun Hotchkiss* |
| Curator: | Jerry M.* |
| *contact for this listing |