Bulletin of the American Physical Society
5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Volume 63, Number 12
Tuesday–Saturday, October 23–27, 2018; Waikoloa, Hawaii
Session CN: Mini-Symposium Intersections of Neutrino Physics and Nuclear Physics
7:00 PM–9:45 PM,
Wednesday, October 24, 2018
Hilton
Room: Kohala 4
Chair: Alfredo Galindo-Uribarri, Oak Ridge National Laboratory
Abstract ID: BAPS.2018.HAW.CN.6
Abstract: CN.00006 : Signature of Individual Fission Products in a Nuclear Reactor Antineutrino Spectrum*
8:30 PM–8:45 PM
Presenter:
Alejandro Sonzogni
(Brookhaven National Laboratory)
Authors:
Alejandro Sonzogni
(Brookhaven National Laboratory)
Elizabeth McCutchan
(Brookhaven National Laboratory)
Michael N Nino
(Hofstra University)
Nuclear reactors are copious sources of electron antineutrinos, produced by the beta-minus decay of more than 800 neutron-rich fission fragments. In the present work, a novel yet simple numerical procedure to analyze the antineutrino and electron spectra has been developed. When applied to the Daya Bay antineutrino spectrum, we identify the presence of 4 nuclides, 95Y, 98,102Nb and 102Tc. Additionally, the presence of 96Y and 92Rb is revealed when the procedure is applied to the 235U electron spectrum. The reason behind this ability to identify individual products is that the emission of antineutrinos in a nuclear reactor is not a purely statistical process. Out of the 800 fission products, a smaller number will be significantly produced due to shell effects, and for each one of those fission products, the number of strong beta transitions is reduced to just a few. Another recent development in the summation method that will be presented is the generation of cumulative fission yield covariances, which allows for uncertainty quantification on the antineutrino yield and related quantities.
*Work sponsored by the U.S. Department of Energy under Contract No. DE-AC02-98CH10886 and by DOE's Science Undergraduate Laboratory Internships Program (SULI).
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.CN.6
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