Majorana neutrino masses and neutrino-less double beta decays
โ Scribed by H. Ejiri
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 112 KB
- Volume
- 149
- Category
- Article
- ISSN
- 0920-5632
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โฆ Synopsis
The present status and the perspectives of neutrino-less ฮฒฮฒ decays and Majorane ฮฝ masses are briefly discussed. The effective ฮฝ masses to be studied by ฮฒฮฒ decays are constrained by ฮฝ oscillation data and the cosmological observation. ฮฒฮฒ experiments with mass sensitivities of the atmospheric and solar ฮฝ masses are very interesting.
๐ SIMILAR VOLUMES
ej irii.:' rc nl~.osaka-u.ac.j p Osaka Uniw~rsity. Neutrinos (u) beyond the standard theory are studied by investigating double beta decays (fl/~). The present stal.us of 3/3 studies a.t RCNP is briefly reported. The/3/) decays on lยฐยฐMo and 4SCa are studied at the Oto Cosmo Observal.ory. The Oto ob
Exclusive measurements of neutrino-less double beta decays (0u/3/3) of tยฐยฐMo were made by means of ELEGANT V. Most stringent lower limits on the half-lives for the ground-state transition were obtained for the 0u/3/3 processes as T~172(m~) > 5.2 ร 10 22 y, T~l/~2(,~) > 3.9 ร 10 22 y and ~%(~7) > 5.1