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Project 8: Using Radio-Frequency Techniques to Measure Neutrino Mass

Author(s)
Formaggio, Joseph A.
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Abstract
The shape of the beta decay energy distribution is sensitive to the mass of the electron neutrino. Attempts to measure the endpoint shape of tritium decay have so far seen no distortion from the zero-mass form. Here we show that a new type of electron energy spectroscopy could improve future measurements of this spectrum and therefore of the neutrino mass. We propose to detect the coherent cyclotron radiation emitted by an energetic electron in a magnetic field. For mildly relativistic electrons, like those in tritium decay, the relativistic shift of the cyclotron frequency allows us to extract the electron energy from the emitted radiation. As the technique inherently involves the measurement of a frequency in a non-destructive manner, it can, in principle, achieve a high degree of resolution and accuracy.
Date issued
2012-08
URI
http://hdl.handle.net/1721.1/102192
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Nuclear Physics B - Proceedings Supplements
Publisher
Elsevier
Citation
Formaggio, J.A. “Project 8: Using Radio-Frequency Techniques to Measure Neutrino Mass.” Nuclear Physics B - Proceedings Supplements 229–232 (August 2012): 371–375.
Version: Author's final manuscript
ISSN
09205632

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