Search for neutrino oscillations at 15, 40 and 95 meters from a nuclear power reactor at Bugey

• Published in: Nuclear physics. B 1995-01, Vol.434 (3), p.503-532
• Main Authors: Achkar, B., Aleksan, R., Avenier, M., Bagieu, G., Bouchez, J., Brissot, R., Cavaignac, J.-F., Collot, J., Cousinou, M-C., Cussonneau, J.P., Declais, Y., Dufour, Y., Favier, J., Garciaz, F., Kajfasz, E., de Kerret, H., Koang, D.H., Lefièvre, B., Lesquoy, E., Mallet, J., Metref, A., Nagy, E., Pessard, H., Pierre, F., Obolensky, M., Stutz, A., Wuthrick, J.P.
• Format: Article
• Language: English
• Subjects: High Energy Physics - Experiment; Physics
• ISSN: 0550-3213; 1873-1562
• DOI: 10.1016/0550-3213(94)00513-E

We report on high statistics measurements of neutrino energy spectra carried out at 15, 40 and 95 meters from a 2800 Megawatt reactor, using detection modules filled with 6Li-loaded liquid scintillator. No oscillations have been observed. Exclusion zones for oscillation parameters are deduced from the observed consistency of the spectra at the three distances. The minimum excluded values of the δm 2 and sin 22θ parameters are 1 × 10 −2eV 2and 2 × 10 −2 (at 90% CL), respectively.