Search for Sterile Neutrinos with a Radioactive Source at Daya Bay

Details Search for Sterile Neutrinos with a Radioactive Source at Daya Bay Search for Sterile Neutrinos with a Radioactive Source at Daya Bay

2011-09-27

arxiv.org/abs/1109.6036v1

Physics

High Energy Physics

High Energy Physics - Experiment

Scientific paper

The far site detector complex of the Daya Bay reactor experiment is proposed as a location to search for sterile neutrinos with > eV mass. Antineutrinos from a 500 kCi 144Ce-144Pr beta-decay source (DeltaQ=2.996 MeV) would be detected by four identical 20-ton antineutrino targets. The site layout allows flexible source placement; several specific source locations are discussed. In one year, the 3+1 sterile neutrino hypothesis can be tested at essentially the full suggested range of the parameters Delta m^2_{new} and sin^22theta_{new} (90% C.L.). The backgrounds from six nuclear reactors at >1.6 km distance are shown to be manageable. Advantages of performing the experiment at the Daya Bay far site are described.

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