Description
In recent years the prediction of the antineutrino spectrum from reactors has attracted considerable attention in both the nuclear and neutrino physics research communities. The reason is two-fold. Comparison of the measured spectrum with model calculations based on the Huber-Mueller model (considered the standard of the field), showed a deficit in the number of the detected neutrinos at short base lines. One possible explanation to this deficit is the existence of a sterile neutrino. Another existing problem is a discrepancy in the 5-7 MeV energy region of the spectrum that is not accounted by the model. Considering that every fission in a reactor is followed by six beta decays, it is evident that the prediction of the antineutrino spectrum from reactors represents a challenge for nuclear physics. In this contribution we present a research plan, that aims to measure the beta decay of the most relevant contributors to the antineutrino spectrum using complementary techniques. The main objective is to improve the summation calculation method to an unprecedented level of precision.