The neutrino puzzle in the light of SNO

SNOʹs 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→νs 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 is favoured over the former).