@Article{Fogli_etal2010, author="Fogli, G. L. and Lisi, E. and Palazzo, A. and Rotunno, A. M.", title="Combined analysis of KamLAND and Borexino neutrino signals from Th and U decays in the Earth{\textquoteright}s interior", journal="Physical Review D", year="2010", publisher="Amer Physical Soc", volume="82", number="9", pages="093006--9pp", abstract="The 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{\textquoteright}s core, if its power exceeds a few TW. The interplay of KamLAND and Borexino geoneutrino data is highlighted.", optnote="ISI:000284144900001", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=331), last updated on Wed, 23 Feb 2011 19:49:10 +0000", issn="1550-7998", doi="10.1103/PhysRevD.82.093006", opturl="http://arxiv.org/abs/1006.1113", opturl="https://doi.org/10.1103/PhysRevD.82.093006", archivePrefix="arXiv", eprint="1006.1113", language="English" }