Constraints on the flavor-dependent non-standard interaction in propagation from atmospheric neutrinos

TL;DR

This paper investigates how atmospheric neutrino experiments can constrain flavor-dependent non-standard interactions during neutrino propagation, focusing on specific matter effect components and their high-energy behavior constraints.

Contribution

It provides a detailed analysis of the sensitivity of atmospheric neutrino data to particular non-standard interaction parameters under realistic assumptions.

Findings

Constraints on $\epsilon_{ee}$, $\epsilon_{e au}$, $\epsilon_{ au au}$$ parameters.

Validation of the high-energy behavior constraint for $\epsilon_{ au au}$.

Enhanced understanding of flavor-dependent non-standard interactions in neutrino physics.

Abstract

The sensitivity of the atmospheric neutrino experiments to the non-standard flavor-dependent interaction in neutrino propagation is studied under the assumption that the only nonvanishing components of the non-standard matter effect are the electron and tau neutrino components $\epsilon_{ee}$, $\epsilon_{e\tau}$, $\epsilon_{\tau\tau}$ and that the tau-tau component satisfies the constraint $\epsilon_{\tau\tau}=|\epsilon_{e\tau}|^2/(1+\epsilon_{ee})$ which is suggested from the high energy behavior for atmospheric neutrino data.