Reactor neutrino oscillation experiments and the shape of the beta strength function

The interpretation of reactor-antineutrino-induced experiments in the investigation of neutrino oscillations is, in a decisive way, dependent on reliable calculations of the initial antineutrino spectra. Present calculations ignore the effects of low-lying structures in the beta strength function. These will have, however, a drastic influence on the β-decay properties of the fission products and thus on the shape of the antineutrino spectra.NUCLEAR STRUCTURE Influence of structures in the beta strength function on reactor antineutrino spectra. Consequences for neutrino oscillation experiments.