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 sola
MOON for neutrino-less double beta decays
โ Scribed by H. Ejiri; P. Doe; S. R. Elliott; J. Engel; M. Finger; M. Finger; K. Fushimi; V. Gehman; M. Greenfield; R. Hazama; P. Kavitov; V. Kekelidze; H. Nakamura; M. Nomachi; R. G. H. Robertson; T. Shima; M. Slunecka; G. Shirkov; A. Sissakian; A. Titov; S. Umehara; V. Vaturin; V. Voronov; J. F. Wilkerson; D. I. Will; S. Yoshida; V. Vrba
- Book ID
- 111633619
- Publisher
- Springer-Verlag
- Year
- 2008
- Tongue
- English
- Weight
- 492 KB
- Volume
- 162
- Category
- Article
- ISSN
- 1951-6355
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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
Neutrino-less double beta decays (0ฮฝฮฒฮฒ) are used for high sensitivity studies of symmetry properties of neutrinos such as the Majorana nature of neutrinos, the absolute mass scale, the CP at the lepton sector, and others. Neutrino nuclear responses (0ฮฝฮฒฮฒ nuclear matrix elements) are crucial for extr