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dc.contributor.authorHayen, L.
dc.contributor.authorKostensalo, Joel
dc.contributor.authorSeverijns, N.
dc.contributor.authorSuhonen, Jouni
dc.date.accessioned2019-03-18T12:14:20Z
dc.date.available2019-03-18T12:14:20Z
dc.date.issued2019
dc.identifier.citationHayen, L., Kostensalo, J., Severijns, N., & Suhonen, J. (2019). First-forbidden transitions in reactor antineutrino spectra. <i>Physical Review C</i>, <i>99</i>(3), Article 031301(R). <a href="https://doi.org/10.1103/physrevc.99.031301" target="_blank">https://doi.org/10.1103/physrevc.99.031301</a>
dc.identifier.otherCONVID_28968294
dc.identifier.otherTUTKAID_80945
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/63204
dc.description.abstractWe study the dominant forbidden transitions in the antineutrino spectra of the fission actinides from 4 MeV onward using the nuclear shell model. Through explicit calculation of the shape factor, we show the expected changes in cumulative electron and antineutrino spectra. Relative to the allowed approximation this results in a minor decrease of electron spectra above 4 MeV, whereas an increase of several percent is observed in antineutrino spectra. We show that forbidden transitions dominate the spectral flux for most of the experimentally accessible range. Based on the shell model calculations we attempt a parametrization of forbidden transitions and propose a spectral correction for all first-forbidden transitions. We enforce correspondence with the Institut Laue-Langevin data set using a summation+conversion approach. When compared against modern reactor neutrino experiments, the resultant spectral change is observed to be of comparable magnitude and shape as the reported spectral shoulder.fi
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review C
dc.rightsIn Copyright
dc.subject.otherbeta decay
dc.subject.otherelectroweak interactions in nuclear physics
dc.subject.otherfission
dc.subject.othernuclear tests of fundamental interactions
dc.subject.othershell model
dc.titleFirst-forbidden transitions in reactor antineutrino spectra
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201903121826
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineFysiikkafi
dc.contributor.oppiainePhysicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2019-03-12T13:15:12Z
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn2469-9985
dc.relation.numberinseries3
dc.relation.volume99
dc.type.versionpublishedVersion
dc.rights.copyright© 2019 American Physical Society
dc.rights.accesslevelopenAccessfi
dc.subject.ysoydinfysiikka
dc.subject.ysoydinreaktiot
dc.subject.ysofissio
dc.subject.ysoneutriinot
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p14759
jyx.subject.urihttp://www.yso.fi/onto/yso/p12413
jyx.subject.urihttp://www.yso.fi/onto/yso/p18705
jyx.subject.urihttp://www.yso.fi/onto/yso/p5219
dc.rights.urlhttp://rightsstatements.org/page/InC/1.0/?language=en
dc.relation.doi10.1103/physrevc.99.031301
dc.type.okmA1


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