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High precision measurement of decay energy of Holmium-163 paves way to the neutrino mass



With the Shiptrap experiment at GSI an international team of scientists succeded in measuring the decay energy of Holmium-163 directly and with high precision. Its decay energy is of exceptional interest because it paves the way for the determination of the mass of the neutrinos which are emitted in the decay of Holmium. The experimental determination of the neutrino mass is one of the great unsolved questions in physics.

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Press release of MPI für Kernphysik Heidelberg

Original publication: Physical Review Letters 115, 062501 (2015); DOI: 10.1103/PhysRevLett.115.062501


Professor Michael Block, head of the SHIPTRAP collaboration.
Professor Michael Block, head of the SHIPTRAP collaboration, doing final preparations for the experiment at GSI.
Gabi Otto, GSI Helmholtzzentrum für Schwerionenforschung