July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

Spectrometry of the Earth using Neutrino Oscillations

Aug 1, 2015, 3:30 PM
1h
Amazon Foyer Terrace (World Forum)

Amazon Foyer Terrace

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 284
Poster contribution NU-IN Poster 2 DM and NU

Speaker

Prof. Akimichi Taketa (Earthquake Research Institute, University of Tokyo)

Description

Neutrinos have favorable properties for measuring the elemental composition deep inside the earth's interior. First, they propagate a long distance almost undisturbed through the earth due to their weak interactions with matter. Secondly, neutrino oscillations in matter are sensitive to the electron density of the medium traversed by them. Therefore, neutrinos can be used for a probe to determine the average atomic mass ratio Z/A of the earth's core by comparing with the earth’s nucleus density distribution that is inferred from seismic observations. There is little uncertainty in densities of the earth's core, but our knowledge of its main light element is very limited. With the advent of the new-generation megaton neutrino detectors, neutrino oscillation mass spectrometry will allow us to constrain directly the light elements in the earth’s outer core. We report the detail of this novel technic and the sensitivity study.
Collaboration -- not specified --
Registration number following "ICRC2015-I/" 738

Primary author

Prof. Akimichi Taketa (Earthquake Research Institute, University of Tokyo)

Co-author

Prof. Carsten Rott (Sungkyunkwan University)

Presentation materials

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