# Neutrino Non-Standard Interactions: A Status Report

## TL;DR

This paper reviews the current understanding of neutrino non-standard interactions, covering theoretical models, experimental phenomenology, and implications for future research in neutrino physics and cosmology.

## Contribution

It provides a comprehensive status report on NSI, including recent developments, experimental sensitivities, and open questions in the field.

## Key findings

- NSI can be connected to neutrino mass models.
- DUNE has significant sensitivity to NSI effects.
- NSI have implications for dark matter and cosmology.

## Abstract

This report summarizes the present status of neutrino non-standard interactions (NSI). After a brief overview, several aspects of NSIs are discussed, including connection to neutrino mass models, model-building and phenomenology of large NSI with both light and heavy mediators, NSI phenomenology in both short- and long-baseline neutrino oscillation experiments, neutrino cross-sections, complementarity of NSI with other low- and high-energy experiments, fits with neutrino oscillation and scattering data, DUNE sensitivity to NSI, effective field theory of NSI, as well as the relevance of NSI to dark matter and cosmology. We also discuss the open questions and interesting future directions that can be pursued by the community at large. This report is based on talks and discussions during the Neutrino Theory Network NSI workshop held at Washington University in St. Louis from May 29-31, 2019 (https://indico.cern.ch/event/812851/)