ABSTRACT
Abstract. A scenario of almost degenerate three flavor neutrinos which have masses suggested by the mixed dark matter model is reexamined with the recent data of the solar, atmospheric neutrinos and neutrinoless double (3 decay experiments. It is found that the Majorana version of the model with the MSW type solution for solar neutrinos is excluded at least at 2,5a confidence level. On the other hand, this scenario with the vacuum oscillation solar solution is consistent with all the constraints and the best fit is close to the set of parameters for the bi-maximal mixing model.
