HOLMES - The Electron Capture Decay of 163Ho to Measure the Electron Neutrino Mass with sub-eV sensitivity

Understand

The European Research Council has recently funded HOLMES, a new experiment to directly measure the neutrino mass.

• HOLMES will perform a calorimetric measurement of the energy released in the decay of 163Ho.
• The calorimetric measurement eliminates systematic uncertainties arising from the use of external beta sources, as in experiments with beta spectrometers.
• This measurement was proposed in 1982 by A.