2014/12/31 by Samuel B. Roland, Bibhushan Shakya, James D. Wells · 43 citations
Physics and Astronomy · #Astrophysics #Cosmology #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark energy #Dark matter #Hot dark matter #Measurements of neutrino speed #Neutrino #Neutrino oscillation #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Scalar field #Seesaw mechanism #Seesaw molecular geometry #Solar neutrino #Solar neutrino problem #Sterile neutrino #Warm dark matter #astro-ph.CO #hep-ph
paper · pdf · doi:10.1103/physrevd.92.113009
published in Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields 92(11) (American Physical Society) · 7 pages, 2 figures. v2: extended discussions, clarified notation, added references. major conclusions unchanged
arxiv created 2015/10/10 · openalex publication_date 2015/12/23 · arxiv updated 2015/12/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We show that active neutrino masses and a keV-GeV mass sterile neutrino dark matter candidate can result from a modified, low energy seesaw mechanism if right-handed neutrinos are charged under a new symmetry broken by a scalar field vacuum expectation value at the PeV scale. The dark matter relic abundance can be obtained through active-sterile oscillation, freeze-in through the decay of the heavy scalar, or freeze-in via nonrenormalizable interactions at high temperatures. The low energy effective theory maps onto the widely studied \ensuremathνMSM framework.