Limits on νe and νe disappearance from Gallium and reactor experiments
- 1. Laboratoire d'Annecy-le-Vieux de Physique Thorique LAPTH, Universite de Savoie, CNRS/IN2P3, 74941 Annecy-le-vieux (France)
- 2. INFN, Sezione di Torino, Via P. Giuria 1, I-10125 Torino (Italy)
- 3. Dipartimento di Fisica Teorica, Universita di Torino, Via P. Giuria 1, I-10125 Torino (Italy)
- 4. Dipartimento di Fisica 'G. Galilei', Universita di Padova, and INFN, Sezione di Padova, Via F. Marzolo 8, I-35131 Padova (Italy)
Description
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 sin22θ > or approx. 0.03 and Δm2 > or approx. 0.1 eV2. 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. sin22θ < or approx. 0.08 and Δm2≅1.8 eV2, 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.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.78.073009;
- arXiv
- arXiv:0711.4222v3;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 78
- Journal Issue
- 7
- Journal Page Range
- p. 073009-073009.10
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41004856
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ANTINEUTRINOS; ARDENNES REACTOR; COMPATIBILITY; ELECTRON NEUTRINOS; MIXING; NEUTRINO OSCILLATION; RADIATION SOURCES
- Descriptors DEC
- ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; ELEMENTARY PARTICLES; ENRICHED URANIUM REACTORS; FERMIONS; LEPTONS; MASSLESS PARTICLES; MATTER; NEUTRINOS; POWER REACTORS; PWR TYPE REACTORS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Notes
- (c) 2008 The American Physical Society