# On the Determination of Leptonic CP Violation and Neutrino Mass Ordering in Presence of Non-Standard Interactions: Present Status

## TL;DR

This paper analyzes how non-standard neutrino interactions affect the determination of leptonic CP violation and neutrino mass ordering, providing a comprehensive status update with a new formalism.

## Contribution

It introduces a parametrization-invariant formalism for leptonic CP violation considering non-standard interactions in matter.

## Key findings

- Current hints for CP violation are affected by NSI.
- The status of neutrino mass ordering is influenced by non-standard interactions.
- Non-maximality of θ23 is also impacted by NSI effects.

## Abstract

We perform a global analysis of neutrino data in the framework of three massive neutrinos with non-standard neutrino interactions which affect their evolution in the matter background. We focus on the effect of NSI in the present observables sensitive to leptonic CP violation and to the mass ordering. We consider complex neutral current neutrino interactions with quarks whose lepton-flavor structure is independent of the quark type. We quantify the status of the "hints" for CP violation, the mass-ordering and non-maximality of $\theta_{23}$ in these scenarios. We also present a parametrization-invariant formalism for leptonic CP violation in presence of a generalized matter potential induced by NSI.