General bounds on non-standard neutrino interactions

TL;DR

This paper establishes model-independent bounds on non-standard neutrino interactions, showing that production and detection NSI are more tightly constrained than matter NSI, with bounds around 10^{-2} to 10^{-1}.

Contribution

It provides updated, model-independent bounds on production, detection, and matter NSI, highlighting the relative strength of constraints on different NSI types.

Findings

Constraints on production and detection NSI are around 10^{-2} to 10^{-1}.

Bounds on production/detection NSI are about an order of magnitude stronger than matter NSI.

Updated and reviewed constraints on matter NSI.

Abstract

We derive model-independent bounds on production and detection non-standard neutrino interactions (NSI). We find that the constraints for NSI parameters are around O(10^{-2}) to O(10^{-1}). Furthermore, we review and update the constraints on matter NSI. We conclude that the bounds on production and detection NSI are generally one order of magnitude stronger than their matter counterparts.