Particle Physics in the Atmosphere, a Perspective from SNO
High energy muons and neutrinos are produced by the interaction of primary cosmic rays in the Earth's upper atmosphere. The Sudbury Neutrino Observatory (SNO) is in a unique position amongst world experiments located underground. At the depth of over 6 km water equivalent, it is the deepest underground laboratory currently in operation. Although SNO is a modest-size Cherenkov detector, its unique niche allows it to make important model-independent checks of atmospheric neutrino oscillations as well as measurements for cosmic rays and muon spallation.
This talk will describe the current status of the analysis in a broader context of particle physics.