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Reevaluating reactor antineutrino spectra with new measurements of the ratio between U- 235 and Pu- 239 beta spectra

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dc.contributor.authorKopeikin, V.
dc.contributor.authorSkorokhvatov, M.
dc.contributor.authorTitov, O.
dc.contributor.authorСкорохватов, Михаил Дмитриевич
dc.date.accessioned2024-11-29T22:06:32Z
dc.date.available2024-11-29T22:06:32Z
dc.date.issued2021
dc.description.abstractWe report a reanalysis of the reactor antineutrino energy spectra based on the new relative measurements of the ratio R =S-e(5)/S-e(9) between cumulative beta spectra from U-235 and Pu-239, performed at a research reactor in National Research Centre Kurchatov Institute (KI). A discrepancy with the beta spectra measured at Institut Laue-Langevin (ILL) was observed, indicating a steady excess of the ILL ratio by the factor of 1.054 +/- 0.002. We find a value of the ratio between inverse beta decay cross section per fission for U-235 and (PU)-P-239: ((5)sigma(f)/(9)sigma(f))(KI)( )= 1.45 +/- 0.03, and then we reevaluate the converted antineutrino spectra for U-235 and U-238. We conclude that the new predictions are consistent with the results of Daya Bay and STEREO experiments.
dc.identifier.citationReevaluating reactor antineutrino spectra with new measurements of the ratio between U- 235 and Pu- 239 beta spectra / Kopeikin, V, Skorokhvatov, M, Titov, O // Physical Review D. - 2021. - 104. - № 8. - 10.1103/PhysRevD.104.L071301
dc.identifier.doi10.1103/PhysRevD.104.L071301
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevD.104.L071301
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85119403345&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000753728900005
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/24865
dc.relation.ispartofPhysical Review D
dc.titleReevaluating reactor antineutrino spectra with new measurements of the ratio between U- 235 and Pu- 239 beta spectra
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue8
oaire.citation.volume104
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