2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/37540Oscillation experiments show that neutrinos have masses. They however only determine the neutrinop mass differences. Information on the absolute masses can be obtained by studying the kinematics in weak decays, or by searching for neutrinoless double beta decay. Recent results are reviewed, as well as future projects.Proceedings of the XXXVIII Rencontres de Moriond, Electroweak interactions and Unified Theories, Les Arcs, March 15-22, 2003, 10 pages, 7 figuresHigh Energy Physics - Experimenttext