Summary of the Neutrino Oscillation Physics Working Group at NuFact04

A variety of experimental techniques are required to determine the properties of the neutrino; end-point measurements are required to determine the mass, neutrinoless-double-beta-decay-search experiments are required to find out if the neutrino is its own antiparticle and oscillation experiments, with various sources and baselines, are required to determine the mixing parameters. The contributions to Working Group 1 at NuFact04 reviewed the status of the present generation of experiments in each of these classes as well as addressing the prospects for the near and the not so near future. The status of neutrino phenomenology was also discussed and a number of non-standard theoretical descriptions of the neutrino were presented. This paper summarizes the experimental, phenomenological and theoretical contributions to the working group as well as the conclusions of a session dedicated to the discussion of the long-term future of neutrino-oscillation experiments.