The first phase of the MARE project in Milano

✍ Scribed by A. Nucciotti; C. Arnaboldi; G. Ceruti; E. Ferri; C. Kilbourne; S. Kraft-Bermuth; B. Margesin; G. Pessina; E. Previtali; D. Schaeffer; M. Sisti

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 106 KB
• Volume: 617
• Category: Article
• ISSN: 0168-9002
• DOI: 10.1016/j.nima.2009.10.079

✦ Synopsis

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 187 Re 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.