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 nue --> nutau oscillations, the atmospheric neutrino anomaly is explained by numu --> nus and the LSND data are explained by nue --> numu. 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 numu --> nus and numu --> nutau possibilities for resolving the atmospheric anomaly (confirming or disconfirming the Super-Kamiokande result that the latter is favoured over the former).

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