Electromagnetic Properties of Neutrinos

TL;DR

This review explores the theoretical foundations and experimental observations of neutrino electromagnetic properties, including form factors, dipole moments, charge radius, and spin precession, highlighting their significance in particle physics.

Contribution

It provides a comprehensive overview of neutrino electromagnetic characteristics, integrating recent experimental data with theoretical models and discussing their phenomenological implications.

Findings

Neutrinos may possess non-zero electromagnetic form factors.

Experimental limits on neutrino magnetic moments have been established.

Neutrino spin precession phenomena have potential observable effects in magnetic fields.

Abstract

In this review we discuss the main theoretical aspects and experimental effects of neutrino electromagnetic properties. We start with a general description of the electromagnetic form factors of Dirac and Majorana neutrinos. Then, we discuss the theory and phenomenology of the magnetic and electric dipole moments, summarizing the experimental results and the theoretical predictions. We discuss also the phenomenology of a neutrino charge radius and radiative decay. Finally, we describe the theory of neutrino spin and spin-flavor precession in a transverse magnetic field and we summarize its phenomenological applications.