KamLAND, terrestrial heat sources and neutrino oscillations

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dc.creatorFiorentini, G.
dc.creatorLasserre, T.
dc.creatorLissia, M.
dc.creatorRicci, B.
dc.creatorSchonert, S.
dc.date2003-01-08
dc.date2003-03-24
dc.date.accessioned2026-07-07T12:02:59Z
dc.date.available2026-07-07T12:02:59Z
dc.descriptionWe comment on the first indication of geo-neutrino events from KamLAND and on the prospects for understanding Earth energetics. Practically all models of terrestrial heat production are consistent with data within the presently limited statistics, the fully radiogenic model being closer to the observed value ($\approx 9$ geo-events). In a few years KamLAND should collect sufficient data for a clear evidence of geo-neutrinos, however discrimination among models requires a detector with the class and size of KamLAND far away from nuclear reactors. We also remark that the event ratio from Thorium and Uranium decay chains is well fixed $N(Th)/N(U) \simeq 0.25$, a constraint that can be useful for determining neutrino oscillation parameters. We show that a full spectral analysis, including this constraint, further reduces the oscillation parameter space compared to an analysis with an energy threshold $E_{vis}>2.6 MeV$.
dc.description12 pages, RevTeX file, 3 ps figures included in the correct order, corrected some typos and added references. Accepted for publication on Phys. Lett. B
dc.identifierhttps://arxiv.org/abs/hep-ph/0301042
dc.identifierhttp://arxiv.org/abs/hep-ph/0301042
dc.identifierPhys.Lett.B558:15-21,2003
dc.identifierdoi:10.1016/S0370-2693(03)00240-5
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207627
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectNuclear Experiment
dc.subjectGeophysics
dc.titleKamLAND, terrestrial heat sources and neutrino oscillations
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