Oscillation tomography of the Earth with solar neutrinos and future experiments

• Main Authors: Alexei Y. Smirnov, Pouya Bakhti
• Format: Conference Object
• Language: unknown
• Published: Zenodo 2020
• Subjects: Antarc*; Antarctica; South pole
• Online Access: https://doi.org/10.5281/zenodo.4254752

We study in details the Earth matter effects on the boron neutrinos from the Sun using recently developed 3D models of the Earth. The models have a number of new features of the density profiles, in particular, substantial deviation from spherical symmetry. The nadir angle ($\eta$) dependences of $A_{ND}$ are computed for future detectors DUNE, THEIA, Hyper-Kamiokande and MICA at the South pole. Perspectives of the oscillation tomography of the Earth with the boron neutrinos are discussed. Next generation of detectors will establish the integrated day-night asymmetry with high confidence level. They can give some indications of the $\eta-$ dependence of the effect, but will discriminate among different models at most at the $(1 - 2)\sigma$ level. For the high level discrimination, the MICA-scale experiments are needed. MICA can detect the ice-soil borders and perform unique tomography of Antarctica.