Speaker: Josh Klein (University of Pennsylvania) Date: Wed Apr 25, 2001, 4.30 pm Location: Wean 7316 Title: Solar Neutrinos and the Sudbury Neutrino Observatory Abstract: The Sudbury Neutrino Observatory (SNO) has been designed to resolve the 30 year old solar neutrino problem. SNO uses 1 kiloton of D2O as both the interaction and detection medium, which provides both charged current (CC) and neutral current (NC) sensitivity. An excess of events seen in the inclusive NC channels relative to the exclusive CC channel thus provides appearance proof for neutrino oscillations. SNO now has eight live-months of solar neutrino data, and analysis of both signal and backgrounds is finishing. I will discuss the status of the SNO detector and analyses, focussing on calibrations of the detector response, the methods of removal and measurement of backgrounds, the detection of the solar neutrino signal, and the plans and prospects for SNO's (very) near and long-term physics program.