In the presence of interactions between neutrinos and dark matter (DM), DM can potentially be produced via freeze-in from the neutrino sector. We investigate the implications of such a scenario for the evolution of both DM and neutrinos in the early Universe, and show that the future cosmic neutrino detection experiment PTOLEMY might be sensitive to neutrino signals that originate from DM annihilation in this model.
@article{arxiv.2110.09883,
title = {Dark matter produced from neutrinos},
author = {Marco Hufnagel and Xun-Jie Xu},
journal= {arXiv preprint arXiv:2110.09883},
year = {2022}
}