Screening models and neutrino oscillations

TL;DR

This paper investigates how scalar fields in screening models influence neutrino flavor oscillations in matter, revealing environmental effects on survival probabilities and comparing predictions with observational data.

Contribution

It introduces an analytical approach to study neutrino oscillations in scalar-matter conformal coupling models within spherically symmetric spacetimes, highlighting environmental impacts.

Findings

Scalar fields affect neutrino oscillation phases.

Environmental matter density influences scalar field behavior.

Results are consistent with observational data.

Abstract

In screening models with scalar-matter conformal coupling, we study the flavor transition of neutrinos. We employ an analytical method for studying the oscillation phase in a spherically symmetric spacetime filled by a scalar field. Since the ambient matter density determines the scalar field's behavior, an indirect environmental effect contributes to the flavor conversion inside matter. We evaluate the survival probabilities and show that the existence of the scalar field affects the oscillations of neutrinos. We discuss the results in the framework of screening mechanisms and the end, confront our results with observational data.