Let There be Light: unlocking the secrets of the Universe with neutrinos (video)

Gabriel Orebi Gann, Assistant Professor of Physics, UC Berkeley

Neutrinos are some of the most fascinating particles that occur in nature. At least a billion times lighter than the proton, the neutrino was once thought to be massless and to travel at the speed of light. The Nobel-Prize winning discovery of neutrino oscillations told us that neutrinos have non-zero mass, which opens up the unique possibility of the neutrino being its own antiparticle, known as a Majorana fermion. This property could help explain the dominance of matter in our Universe. This talk will present new results of precision analyses and rare-event searches from the Sudbury Neutrino Observatory and from its successor experiment, SNO+, that help to define the limiting backgrounds for next-generation searches for Majorana neutrinos, and for dark matter. We will then discuss technological advances that could enable a new kind of large-scale neutrino experiment, with unprecedented physics reach.