Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/32092
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dc.contributor.authorFogli, G. L.-
dc.contributor.authorLisi, E.-
dc.contributor.authorPalazzo, Antonio-
dc.contributor.authorRotunno, A. M.-
dc.date.accessioned2011-02-07T13:47:13Z-
dc.date.available2011-02-07T13:47:13Z-
dc.date.issued2010-11-12-
dc.identifier.citationPhysical Review - Section D - Particles and Fields 82 (9): 093006 (2010)es_ES
dc.identifier.issn1550-7998-
dc.identifier.urihttp://hdl.handle.net/10261/32092-
dc.description.abstractThe KamLAND and Borexino experiments have detected electron antineutrinos produced in the decay chains of natural thorium and uranium (Th and U geoneutrinos). We analyze the energy spectra of current geoneutrino data in combination with solar and long-baseline reactor neutrino data, with marginalized three-neutrino oscillation parameters. We consider the case with unconstrained Th and U event rates in KamLAND and Borexino, as well as cases with fewer degrees of freedom, as obtained by successively assuming for both experiments a common Th/U ratio, a common scaling of Th + U event rates, and a chondritic Th/U value. In combination, KamLAND and Borexino can reject the null hypothesis (no geoneutrino signal) at 5 sigma. Interesting bounds or indications emerge on the Th + U geoneutrino rates and on the Th/U ratio, in broad agreement with typical Earth model expectations. Conversely, the results disfavor the hypothesis of a georeactor in the Earth's core, if its power exceeds a few TW. The interplay of KamLAND and Borexino geoneutrino data is highlighted.es_ES
dc.description.sponsorshipE.L. thanks G. Fiorentini, A. Ianni and W.F. McDonough for many useful discussions about geoneutrino physics in the last few years. The work of G.L.F., E.L. and A.M.R. is partly supported by the Italian Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR) through the Progetto di Rilevante Interesse Nazionale (PRIN) “Fisica Astroparticellare: Neutrino ed Universo Primordiale,” and partly by the Istituto Nazionale di Fisica Nucleare (INFN) through the research initiative “Fisica Astroparticellare FA51.” The work of A.P. is supported by the Spanish Ministerio de Educación y Ciencia (MEC) under the I3P program, by the Spanish Grants FPA2008-00319, CSD2009-00064, PROMETEO/2009/091, and by the European network UNILHC (PITN-GA-2009-237920).es_ES
dc.language.isoenges_ES
dc.publisherAmerican Physical Societyes_ES
dc.rightsopenAccesses_ES
dc.titleCombined analysis of KamLAND and Borexino neutrino signals from Th and U decays in the Earth's interiores_ES
dc.typeartículoes_ES
dc.identifier.doi10.1103/PhysRevD.82.093006-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1103/PhysRevD.82.093006es_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.fulltextWith Fulltext-
item.languageiso639-1en-
item.openairetypeartículo-
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