The first phase of the MARE project in Milano

The international project “Microcalorimeter Arrays for a Rhenium Experiment” (MARE) aims at the direct and calorimetric measurement of the electron anti-neutrino mass with sub-electronvolt sensitivity. The experimental strategy consists in studying the beta spectrum of 187Re near the end-point looki...

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Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2010-05, Vol.617 (1), p.509-510
Main Authors: Nucciotti, A., Arnaboldi, C., Ceruti, G., Ferri, E., Kilbourne, C., Kraft-Bermuth, S., Margesin, B., Pessina, G., Previtali, E., Schaeffer, D., Sisti, M.
Format: Article
Language:English
Subjects:
Accelerators
Antiparticles
Arrays
Cryogenic detectors
Detectors
Distortion
Fundamental physics
Neutrino mass
Spectra
Staged
Statistics
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Summary:The international project “Microcalorimeter Arrays for a Rhenium Experiment” (MARE) aims at the direct and calorimetric measurement of the electron anti-neutrino mass with sub-electronvolt sensitivity. The experimental strategy consists in studying the beta spectrum of 187Re near the end-point looking for the spectral distortion expected for a finite anti-neutrino mass. The MARE project has a staged approach: in the final experimental phase (MARE-2), several large arrays with as many as 10 000 detectors each will be deployed to collect the statistics required to probe the anti-neutrino mass with a sensitivity of at least 0.2 eV, comparable to the one expected for the Katrin experiment (KATRIN LoI, 2001, [1]). In the short term, smaller scale experiments are planned to reach sensitivities of the order of 1 eV (MARE-1). This contribution reports on the Milano group activity for the MARE project.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2009.10.079