The neutrino puzzle in the light of SNO

Abstract

SNO's neutral current measurement has added a new piece to the emerging neutrino physics puzzle. Putting together the presently available experimental information, an essentially unique picture emerges: The solar neutrino anomaly is explained by νe → ντ oscillations, the atmospheric neutrino anomaly is explained by νμ → ντ and the LSND data are explained by νe → νμ. This scheme will be tested by future experiments: MiniBooNE will test the oscillation explanation of the LSND anomaly, while the long baseline experiments will discriminate between the νμ → νs and νμ → ντ possibilities for resolving the atmospheric anomaly (confirming or disconfirming the Super-Kamiokande result that the latter i..