Limits on {nu}{sub e} and {nu}{sub e} disappearance from Gallium and reactor experiments
- Dipartimento di Fisica Teorica, Universita di Torino, Via P. Giuria 1, I-10125 Torino (Italy)
- INFN, Sezione di Torino, Via P. Giuria 1, I-10125 Torino (Italy)
- Dipartimento di Fisica 'G. Galilei', Universita di Padova, and INFN, Sezione di Padova, Via F. Marzolo 8, I-35131 Padova (Italy)
The deficit observed in the Gallium radioactive source experiments is interpreted as a possible indication of the disappearance of electron neutrinos. In the effective framework of two-neutrino mixing we obtain sin{sup 2}2{theta} > or approx. 0.03 and {delta}m{sup 2} > or approx. 0.1 eV{sup 2}. The compatibility of this result with the data of the Bugey and Chooz reactor short-baseline antineutrino disappearance experiments is studied. It is found that the Bugey data present a hint of neutrino oscillations with 0.02 < or approx. sin{sup 2}2{theta} < or approx. 0.08 and {delta}m{sup 2}{approx_equal}1.8 eV{sup 2}, which is compatible with the Gallium allowed region of the mixing parameters. This hint persists in the combined analyses of Bugey and Chooz data, of Gallium and Bugey data, and of Gallium, Bugey, and Chooz data.
- OSTI ID:
- 21254263
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 78, Issue 7; Other Information: DOI: 10.1103/PhysRevD.78.073009; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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