The basics of neutrino oscillations is discussed. The importance of the time-energy uncertainty relation is stressed. Neutrino oscillations in the leading approximation and evidence for neutrino oscillations are briefly summarized.
On the neutrino mass spectrum and neutrino mixing from oscillation data
โ Scribed by S.M. Bilenky; C. Giunti; W. Grimus
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 435 KB
- Volume
- 77
- Category
- Article
- ISSN
- 0920-5632
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โฆ Synopsis
Two schemes of mixing of four massive neutrinos with two couples of close neutrino masses separated by a gap of the order of 1 eV can accommodate solar, atmospheric and LSND neutrino oscillation data. It is shown that long-baseline ~ --~ ~ and t,, --+ t,~ transitions are strongly suppressed in these schemes. The scheme of mixing of three neutrino masses with a mass hierarchy that can describe solar and atmospheric neutrino data is also discussed. It is shown that in this scheme the effective Majorana mass I(m}l that characterizes the matrix element of neutrinoless double-~ decay is less than ~ 10 -2 eV.
๐ SIMILAR VOLUMES
The results of the "Troitsk u-mass" experiment on the search for the neutrino rest mass in the tritium/~-decay are presented. The study of the time dependence of an anomalous, bump-like structure at the end of ~-spectrum reported earlier, gives an indication of a periodic shift of the position of th