The possibility of measuring sin2 2θ13 using reactor neutrinos is examined in detail. It is shown that the sensitivity sin2 2θ130.02 can be reached with 40 ton yr data by placing identical CHOOZ-like detectors at near and far distances from a giant nuclear power plant whose total thermal energy is 24.3 GWth. It is emphasized that this measurement is free from the parameter degeneracies that occur in accelerator appearance experiments, and therefore the reactor measurement is complementary to accelerator experiments. It is also shown that the reactor measurement may be able to resolve the degeneracy in θ23 if sin2 2θ13 and cos 2 2θ23 are relatively large.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)