Neutrino geophysics with KamLAND and future prospects

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dc.creatorEnomoto, S.
dc.creatorOhtani, E.
dc.creatorInoue, K.
dc.creatorSuzuki, A.
dc.date2005-08-03
dc.date2005-10-20
dc.date.accessioned2026-07-07T06:42:05Z
dc.date.available2026-07-07T06:42:05Z
dc.descriptionThe Kamioka liquid scintillator anti-neutrino detector (KamLAND) is a low-energy and low-background neutrino detector which could be a useful probe for determining the U and Th abundances of the Earth. We constructed a model of the Earth in order to evaluate the rate of geologically produced anti-neutrinos (geo-neutrinos) detectable by KamLAND. We found that KamLAND can be used to determine the absolute abundances of U and Th in the Earth with an accuracy sufficient for placing important constraints on Earth's accretional process and succeeding thermal history. The present observation of geo-neutrinos with KamLAND is consistent with our model prediction based on the bulk silicate Earth (BSE) composition within the uncertainty of the measurement. If a neutrino detector were to be built in Hawaii, where effects of the continental crust would be negligible, it could be used to estimate the U and Th content in the lower mantle and the core. Our calculation of the geo-neutrino event rate on the Earth's surface indicates that geo-neutrino observation can provide key information for testing the current models for the content and distribution of U and Th in the Earth.
dc.description30 pages, 6 figures (color)
dc.identifierhttps://arxiv.org/abs/hep-ph/0508049
dc.identifierhttp://arxiv.org/abs/hep-ph/0508049
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/101909
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNeutrino geophysics with KamLAND and future prospects
dc.typetext

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