After 5 years of planning and building the Daya Bay Reactor Neutrino Experiment is preparing to take its first neutrino data this summer. Virginia Tech Professor Jonathan Link and his group are working, as part of the international collaboration, to complete the first of three experimental halls by early July.
Daya Bay is designed to search for the last of three neutrino mixing angles. It will use electron anti-neutrinos from the 6 reactors at the Daya Bay Nuclear Power Plant in Guangdong Province, China to search for a tiny decrease in the interaction rate which should peak at a distance of about 2 km from the plant. This is the expected signature for neutrino oscillations due to mixing angle scientists refer to as θ13.
(Press release about the start of data taking, 8/19/11)