Galactic Dark Matter Population as the Source of Neutrino Masses

TL;DR

This paper proposes a novel mechanism where dark matter in the galaxy could generate neutrino masses via a long-range scalar force, challenging traditional vacuum-based mass generation models.

Contribution

It introduces a new model linking galactic dark matter distribution to neutrino mass generation through a feeble scalar force, with testable implications.

Findings

Relic neutrino background may be absent locally due to dark matter influence.

Future experiments like PTOLEMY could falsify the model if neutrino background is detected.

The model imposes specific phenomenological constraints on dark matter and neutrino interactions.

Abstract

We propose that neutrino masses can be zero $in ~vacuo$ and may be generated by the local distribution of dark matter through a feeble long range scalar force. We discuss potential phenomenological constraints and implications of this framework. Our model typically implies that the relic neutrino background left over from the Big Bang is mostly absent in our Galactic neighborhood. Hence, a positive detection signal from future proposed experiments, such as PTOLEMY, could in principle falsify our scenario.