Limits on Neutrino Oscillations from the CHOOZ experiment

by Alessandro BALDINI (INFN Pisa)

Tuesday 26 Oct 1999, 16:30 → 16:45 Europe/Zurich

500/1-001 - Main Auditorium (CERN)

We present new results based on the entire data sample of the CHOOZ experiment, located near two nuclear reactors in the north of France. No evidence for neutrino oscillations was found in the electron antineutrino disappearance mode for the parameter region given by approximately dm² > 7³ 10^-4 eV² for maximum mixing, and sin² 2q > 0.10 for large values of the squared mass difference. Lower-sensitivity results, based only on the comparison of the positron spectra from the two different-distance nuclear reactors, are also presented. These are independent of the absolute normalisation of the antineutrino flux, the cross section, the number of target protons and the detector efficiencies. We will also discuss the future prospects for neutrino oscillation experiments at nuclear reactors.

Organiser(s): Jasper KIRKBY / EP Division

Note: * Tea & coffee will be served at 16.00 hrs.