Uranium and Plutonium antineutrino spectra taken by summation method used to fit experimentally measured reactor antineutrino spectrum

TL;DR

This paper uses the summation method to calculate fissile isotope antineutrino spectra, fitting experimental data and accurately reproducing measured inverse beta decay cross sections.

Contribution

It introduces a flexible summation method allowing shape adjustments of unknown fragments to better fit experimental antineutrino spectra.

Findings

Spectra conform to all experimental data

Reproduce measured inverse beta decay cross sections accurately

Flexible summation method improves spectral fitting

Abstract

Antineutrino spectra of fissile isotopes calculated using summation method being used to fit experimental spectra got in several experiments. Summation method was used with the possibility of changing individual spectrum shape of unknown fragments. Found spectra conform to all experiments and reproduce with the best accuracy measured inverse beta decay cross sections.