Reevaluating reactor antineutrino spectra with new measurements of the ratio between ${}^{235}$U and ${}^{239}$Pu $\beta$ spectra

V. Kopeikin, M. Skorokhvatov, O. Titov

We report a reanalysis of the reactor antineutrino energy spectra based on the new relative measurements of the ratio $R={}^e{S}_5{/}^e{S}_9$ between cumulative $\beta$ spectra from $^{2…