# eV-scale Sterile Neutrinos

## TL;DR

This paper reviews the phenomenology of eV-scale sterile neutrinos, focusing on short-baseline oscillation anomalies, data fits, and implications for decay processes and cosmology, highlighting future research directions.

## Contribution

It provides a comprehensive review of light sterile neutrino phenomenology, including data analysis, current tensions, and future experimental prospects.

## Key findings

- Identification of short-baseline oscillation anomalies
- Discussion of current data fit tensions
- Implications for decay processes and cosmology

## Abstract

We address the phenomenology of light sterile neutrinos, with emphasis on short-baseline neutrino oscillations. After a review of the observed short-baseline neutrino oscillation anomalies, we discuss the global fit of the data and the current appearance-disappearance tension. We also review briefly the effects of light sterile neutrinos in $\beta$ decay, neutrinoless double-$\beta$ decay and cosmology. Finally, we discuss the future perspective in the search for the effects of eV-scale sterile neutrinos.