Non standard neutrino interactions

TL;DR

This paper reviews non-standard neutrino interactions, discussing current constraints and future experimental perspectives, to explore potential new physics beyond the standard neutrino oscillation framework.

Contribution

It provides a comprehensive overview of the current status and future prospects of non-standard neutrino interactions as a phenomenological approach to new physics.

Findings

Current experimental constraints on non-standard interactions

Potential of future experiments to probe non-standard interactions

Implications for understanding neutrino properties and new physics

Abstract

Neutrino oscillations have become well-known phenomenon; the measurements of neutrino mixing angles and mass squared differences are continuously improving. Future oscillation experiments will eventually determine the remaining unknown neutrino parameters, namely, the mass ordering, normal or inverted, and the CP-violating phase. On the other hand, the absolute mass scale of neutrinos could be probed by cosmological observations, single beta decay as well as by neutrinoless double beta decay experiments. Furthermore, the last one may shed light on the nature of neutrinos, Dirac or Majorana, by measuring the effective Majorana mass of neutrinos. However, the neutrino mass generation mechanism remains unknown. A well-motivated phenomenological approach to search for new physics, in the neutrino sector, is that of non-standard interactions. In this short review, the current constraints in this picture, as well as the perspectives from future experiments, are discussed.