Remarks on the forces generated by two-neutrino exchange

TL;DR

This paper reviews the long-range forces from two-neutrino exchange, highlighting potential enhancements if neutrinos have magnetic moments, but concludes these forces remain too weak to detect.

Contribution

It provides an updated analysis of neutrino-exchange forces, considering the effects of neutrino mass and magnetic moments on their strength.

Findings

Neutrino exchange forces are generally too weak to observe.

Magnetic moments close to experimental bounds could increase the force.

Current forces remain below detectable levels.

Abstract

A brief up-to-date review of the long range forces generated by two neutrino exchange is presented. The potential due to exchange of a massive neutrino-antineutrino pair between particles carrying weak charge might be larger than expected if the neutrinos have not only masses but also magnetic moments close to the present experimental bounds. It still remains too small to be observable.