How much uranium is in the Earth? Predictions for geoneutrinos at KamLAND
Abstract
Geo-neutrino detection can determine the amount of long-lived radioactive elements within our planet, thus providing a direct test of the bulk silicate Earth (BSE) model and fixing the radiogenic contribution to the terrestrial heat. We present a prediction for the geo-neutrino signal at KamLAND as a function of the uranium mass in the Earth. The prediction is based on global mass balance, supplemented by a detailed geochemical and geophysical study of the region near the detector. The prediction is weakly dependent on mantle modeling. If BSE is correct, uranium geo-neutrinos will produce between 25 and 35 events per year and 1032 protons at Kamioka.
- Publication:
-
Physical Review D
- Pub Date:
- August 2005
- DOI:
- arXiv:
- arXiv:hep-ph/0501111
- Bibcode:
- 2005PhRvD..72c3017F
- Keywords:
-
- 91.35.-x;
- 13.15.+g;
- 14.60.Pq;
- 23.40.Bw;
- Earth's interior structure and properties;
- Neutrino interactions;
- Neutrino mass and mixing;
- Weak-interaction and lepton aspects;
- High Energy Physics - Phenomenology;
- Astrophysics;
- High Energy Physics - Experiment;
- Nuclear Experiment;
- Physics - Geophysics
- E-Print:
- 25 pages, 5 figures