Weinheimer, C. (2014) Direct measurements of neutrino mass. Il nuovo cimento C, 37 (3). pp. 89-94. ISSN 1826-9885
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Abstract
Direct neutrino mass experiments are complementary to searches for neutrinoless double β-decay and to analyses of cosmological data. Up to recently all direct neutrino mass experiments have been performed with tritium. Starting with the pioneering experiments by Curran, Angus and Cockroft as well as by Hanna and Pontecorvo the last tritium beta decay experiments at Mainz and at Troitsk have achieved upper limits on the neutrino mass of about 2 eV/c2. The KATRIN experiment under construction will improve the neutrino mass sensitivity down to 200 meV/c2 by increasing strongly the statistics and – at the same time – reducing the systematic uncertainties. Commissioning measurements with half of the KATRIN experiment, the huge main spectrometer and the detector, have been performed just recently. As an alternative to tritium β-decay experiments cryobolometers investigating the endpoint region of 187Re β-decay or of the electron capture of 163Ho are being developed.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 19 May 2020 15:31 |
| Last Modified: | 19 May 2020 15:31 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/18601 |
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