CHOOZ
CHOOZ was a long baseline neutrino oscillation experiment in Chooz, France. Its major result was setting limits on the neutrino oscillation parameters responsible for changing electron neutrinos into other neutrinos. Specifically, it found that sin(2θ13) < 0.17 for large δm and δm > ×10 eV 8 for maximal mixing. Results were published in 1999.