Title: Signs of New Physics: Evidence for Massive Neutrinos in the Sudbury Neutrino Observatory


The Sudbury Neutrino Observatory (SNO) is designed to study the properties of solar neutrinos by measuring both the total flux of solar 8B neutrinos as well as the electron-type neutrino flux through neutrino interactions with deuterium. SNO's first results have established neutrino flavor transformation as the solution to the observed deficit of solar neutrinos and provided evidence for mixing in the lepton sector with novel neutrino properties beyond the Standard Model. We will discuss techniques for determining the flux of solar 8B neutrinos through the neutral-current interaction with deuterium, and for characterizing backgrounds throughout the entire detector volume. Results from the first phase of SNO will be presented along with their implications for particle physics, astrophysics, and cosmology.