We propose a minimal model where a dark sector seeds neutrino mass generation radiatively within the linear seesaw mechanism. Neutrino masses are calculable, since tree-level contributions are forbidden by symmetry. They arise from spontaneous lepton number violation by a small Higgs triplet vacuum expectation value. Lepton flavour violating processes e.g. μ→eγ can be sizeable, despite the tiny neutrino masses. We comment also on dark-matter and collider implications.
@article{arxiv.2305.02273,
title = {Linear seesaw mechanism from dark sector},
author = {A. E. Cárcamo Hernández and Vishnudath K. N. and José W. F. Valle},
journal= {arXiv preprint arXiv:2305.02273},
year = {2023}
}