Earth Matter Effect on Democratic Neutrinos

TL;DR

This paper explores how Earth's matter influences neutrino oscillations within the democratic neutrino theory, highlighting differences from models with smaller mixing angles and providing a detailed oscillogram analysis.

Contribution

It introduces a well-defined neutrino oscillogram based on the democratic neutrino theory, emphasizing the impact of Earth's matter on neutrino oscillations with a specific mixing angle.

Findings

Distinct oscillogram features due to Earth's matter effects

Comparison with models having smaller theta-1-3

Implications for neutrino oscillation experiments

Abstract

The neutrino propagation through the Earth is investigated in the framework of the democratic neutrino theory. In this theory the neutrino mixing angle theta-1-3 is approximately determined, which allows one to make a well defined neutrino oscillogram driven by the 1-3 mixing in the matter of the Earth. Significant differences in this oscillogram from the case of models with relatively small theta-1-3 are discussed.