PT Journal AU Carcamo Hernandez, AE Vishnudath, KN Valle, JWF TI Linear seesaw mechanism from dark sector SO Journal of High Energy Physics JI J. High Energy Phys. PY 2023 BP 046 EP 18pp VL 09 IS 9 DI 10.1007/JHEP09(2023)046 LA English DE Lepton Flavour Violation (charged); Multi-Higgs Models; Neutrino Mixing; Sterile or Heavy Neutrinos AB We propose a minimal model where a dark sector seeds neutrino mass generation radiatively within the linear seesaw mechanism. Neutrino masses are calculable, since treelevel 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-> e gamma can be sizeable, despite the tiny neutrino masses. We comment also on dark-matter and collider implications. ER