HOLMES: The electron capture decay of ...Ho to measure the electron neutrino mass with sub-eV sensitivity

(ProQuest: ... denotes formulae and/or non-USASCII text omitted; see image).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 ...Ho. The calorimetric...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2015-03, Vol.75 (3), p.1-11
Main Authors: Alpert, B, Balata, M, Bennett, D, Biasotti, M, Boragno, C, Brofferio, C, Ceriale, V, Corsini, D, Day, P K, Gerone, M, Dressler, R, Faverzani, M, Ferri, E, Fowler, J, Gatti, F, Giachero, A, Hays-Wehle, J, Heinitz, S, Hilton, G, Koster, U, Lusignoli, M, Maino, M, Mates, J, Nisi, S, Nizzolo, R, Nucciotti, A, Pessina, G, Pizzigoni, G, Puiu, A, Ragazzi, S, Reintsema, C, Gomes, MRibeiro, Schmidt, D, Schumann, D, Sisti, M, Swetz, D, Terranova, F, Ullom, J
Format: Article
Language:English
Subjects:
Arrays
Calorimetry
Decay
Design engineering
Electron capture
Neutrinos
Spectrometry
Spectroscopy
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Summary:(ProQuest: ... denotes formulae and/or non-USASCII text omitted; see image).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 ...Ho. 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. De Rujula and M. Lusignoli, but only recently the detector technological progress allowed to design a sensitive experiment. HOLMES will deploy a large array of low temperature microcalorimeters with implanted ...Ho nuclei. The resulting mass sensitivity will be as low as 0.4 eV. HOLMES will be an important step forward in the direct neutrino mass measurement with a calorimetric approach as an alternative to spectrometry. It will also establish the potential of this approach to extend the sensitivity down to 0.1 eV. We outline here the project with its technical challenges and perspectives.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-015-3329-5