Right-handed neutrino magnetic moments

TL;DR

This paper explores the phenomenology of right-handed neutrino magnetic moments within an effective field theory framework, introducing a novel dimension 5 operator with potential significant implications.

Contribution

It identifies a previously unreported dimension 5 electroweak moment operator for right-handed neutrinos, expanding the theoretical understanding of neutrino interactions.

Findings

Discovery of a new dimension 5 operator for right-handed neutrinos.

Potential phenomenological consequences of the new operator.

Implications for neutrino magnetic moment studies.

Abstract

We discuss the phenomenology of the most general effective Lagrangian, up to operators of dimension 5, build with standard model fields and interactions including right-handed neutrinos. In particular we find there is a dimension 5 electroweak moment operator of right-handed neutrinos, not discussed previously in the literature, which could have interesting phenomenological consequences.