Meaningful Details: The value of adding baseline dependence to the Neutrino-Dark Matter Effect

TL;DR

This paper explores how considering baseline dependence in coherent neutrino interactions with dark matter significantly expands the potential for detecting such effects, despite current experimental challenges.

Contribution

It introduces a coherent analysis of neutrino-dark matter interactions using two models, revealing increased parameter space for detection.

Findings

Coherent analysis expands detectable parameter space.

Detection requires at least six orders of magnitude improvement in energy resolution.

Experimental detection of coherent astronomical neutrinos remains highly challenging.

Abstract

The possible effect on the flavour spectra of astronomical neutrinos from a neutrino-dark matter interaction has been investigated for decoherent neutrinos. In this work, we report results calculated for coherent neutrinos. This was done with two different models for the neutrino dark-matter interactions: a flavour state interaction,as for the weak interaction in the Standard Model, and a mass state interaction, which is predicted by certain non-Standard Models (specifically Scotogenic models). It was found that using a coherent analysis dramatically increased the explorable parameter space for the neutrino-dark matter interaction. However, the detection of coherent astronomical neutrinos presents a significant challenge to experimentalists, because such a detection would require an improvement in energy resolution by at least six orders of magnitude, with similar improvements in astronomical distance determinations.