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Earth’s mass and internal structure have been primarily studied through gravitational and seismic methods. Neutrinos, however, offer an independent way to explore Earth’s interior via matter effects in neutrino oscillations that depend on the electron distribution inside Earth, and hence its matter density. Our study uses atmospheric neutrinos at DeepCore, a densely instrumented sub-detector of the IceCube Neutrino Observatory, to estimate Earth’s mass and layer densities. We also assess how the upcoming IceCube Upgrade, with denser instrumentation, could improve these measurements.

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Study of the Internal Structure of the Earth Using Neutrino Oscillations at IceCube DeepCore

  • 会议论文

  • 发表日期：

    2025年

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  • Sharmistha Chattopadhyay

摘要

Earth’s mass and internal structure have been primarily studied through gravitational and seismic methods. Neutrinos, however, offer an independent way to explore Earth’s interior via matter effects in neutrino oscillations that depend on the electron distribution inside Earth, and hence its matter density. Our study uses atmospheric neutrinos at DeepCore, a densely instrumented sub-detector of the IceCube Neutrino Observatory, to estimate Earth’s mass and layer densities. We also assess how the upcoming IceCube Upgrade, with denser instrumentation, could improve these measurements.