
We review sterile neutrinos as possible Dark Matter candidates. After a short summary on the role of neutrinos in cosmology and particle physics, we give a comprehensive overview of the current status of the research on sterile neutrino Dark Matter. First we discuss the motivation and limits obtained through astrophysical observations. Second, we review different mechanisms of how sterile neutrino Dark Matter could have been produced in the early universe. Finally, we outline a selection of future laboratory searches for keV-scale sterile neutrinos, highlighting their experimental challenges and discovery potential.
Invited review to appear in Progress in Particle and Nuclear Physics. 60 pages, 14 figures. Discussion extended and references added, matches journal version
neutrino: detector-new physics-review, cosmological model, Cosmology and Nongalactic Astrophysics (astro-ph.CO), [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], review, FOS: Physical sciences, Neutrino models, 530, High Energy Physics - Experiment, neutrino: production, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Dark matter, neutrino: dark matter, Warm dark matter, neutrino: mass, numerical calculations, Sterile neutrino, new physics, Indirect dark matter searches, neutrino: sterile, seesaw model, [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics - Phenomenology, Dark matter experiments, neutrino: detector, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], neutrino: model- cosmological model, neutrino: oscillation, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], Astrophysics - Cosmology and Nongalactic Astrophysics
neutrino: detector-new physics-review, cosmological model, Cosmology and Nongalactic Astrophysics (astro-ph.CO), [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], review, FOS: Physical sciences, Neutrino models, 530, High Energy Physics - Experiment, neutrino: production, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Dark matter, neutrino: dark matter, Warm dark matter, neutrino: mass, numerical calculations, Sterile neutrino, new physics, Indirect dark matter searches, neutrino: sterile, seesaw model, [PHYS.HPHE] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics - Phenomenology, Dark matter experiments, neutrino: detector, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], neutrino: model- cosmological model, neutrino: oscillation, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], Astrophysics - Cosmology and Nongalactic Astrophysics
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