Abstract:The solar neutrino problem which dates back to the early 1970s has been solved, so also the atmospheric neutrino anomaly which was discovered in the 1980s.
A review of the recent neutrino oscillation physics results is presented, including the determination of squared mass differences and mixing angles. Evidence of flavour oscillations gives a positive answer to the question of the neutrino masses: a fact that would indicate the existence of new physics beyond the standard model.
Experiments, which recently gave convincing and elegant explanation of the long-standing problem of neutrino flavour transitions, are discussed: expectations for the next generation of accelerator based oscillation experiments will be briefly summarized.
Document Type: Research Article
Publication date: December 1, 2003