Calorimetric approach to the direct measurement of the neutrino mass: The MARE project
2008-10-23
Loading...
View/Download File
Persistent link to this item
Statistics
View StatisticsJournal Title
Journal ISSN
Volume Title
Title
Calorimetric approach to the direct measurement of the neutrino mass: The MARE project
Authors
Published Date
2008-10-23
Publisher
Talk delivered at the workshop on “Neutrino Frontiers,” held at the University of Minnesota, October 23-26, 2008.
Type
Presentation
Abstract
The direct kinematic measurement of the electron anti-neutrino mass is one of the tools available in order to assess the neutrino absolute mass scale. Due to the difficulty of this kind of measurements it is important to have more than one experiment involved in this search. In particular the calorimetric approach can be alternative and complementary to the "traditional" tritium end-point study performed with beta spectrometers. In this context the MARE experiment, which is based on the study of the beta spectrum of a 187Re source embedded in a low temperature microcalorimeter, will play a crucial role. The MARE project will be realized thanks mainly to the convergence of three experiences, matured within the MANU (Genova), MIBETA (Milano) and Wisconsin-NASA groups. In this talk, I will present the status of the MARE experiment and I will show the potential of the calorimetric approach, giving an estimate of the present and foreseen statistical sensitivity on neutrino mass and illustrating which the possible sources of systematic uncertainty are. I will mainly focus on the activities in progress to reach 2 eV sensitivity, using arrays of semiconductor thermistors and AgReO4 absorbers. The results so far obtained in this sector will be presented and discussed. The final aim of the MARE project is to reach a statistical sensitivity of about 0.2 eV, the same predicted for the next generation spectrometric experiment KATRIN. As I will discuss, this result can be achieved thanks to a further implementation of the detector technologies (under study), a multiplication of the read-out channels and a complete understanding of all sources of systematic uncertainty.
Keywords
Description
This talk was part of the workshop on "Neutrino Frontiers," held October 23-26, 2008 at the University of Minnesota. The workshop was sponsored by the Fine Theoretical Physics Institute and the Cosmology Group in the School of Physics and Astronomy. http://www.ftpi.umn.edu/neutrinos08/
Related to
Replaces
License
Collections
Series/Report Number
Funding information
University of Insubria & INFN – Milano Bicocca, on behalf of the MARE collaboration
Isbn identifier
Doi identifier
Previously Published Citation
Other identifiers
Suggested citation
Andreotti, Erica. (2008). Calorimetric approach to the direct measurement of the neutrino mass: The MARE project. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/44467.
Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.