Abstract
Antineutrino spectra following the neutron induced fission of , and are calculated using the summation approach. While each system involves the decay of more than 800 fission products, the energy region of the spectra most relevant to neutrino oscillations and the reactor antineutrino anomaly is dominated by fewer than 20 nuclei, for which we provide a priority list to drive new measurements. The very-high-energy portion of the spectrum is mainly due to the decay of just two nuclides, and . The integral of the signal measured by antineutrino experiments is found to have a dependence on the mass and proton numbers of the fissioning system. In addition, we observe that of the signal originates from the light fission fragment group and about from the decay of odd- odd- nuclides.
- Received 8 August 2014
- Revised 25 November 2014
DOI:https://doi.org/10.1103/PhysRevC.91.011301
©2015 American Physical Society
Synopsis
Whence Antineutrinos?
Published 8 January 2015
Theorists suggest which fission fragments should be experimentally characterized to better understand antineutrino emission in nuclear reactors.
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