Cosmology and the secret interactions of sterile neutrinos
Title: Cosmology and the secret interactions of sterile neutrinos
Presenter: Steen Hannestad (Aarhus U)
Chair: Pilar Hernández (Valencia U)
Abstract: At present there are a number of indications that sterile neutrinos with a mass in the eV range and relatively large mixing with the active sector may exist. However, such neutrinos seen incompatible with precision cosmology because they would have too large an impact on structure formation.
If sterile neutrinos have "secret" self-interactions they generate a matter potential for themselves which can very efficiently shut off production of sterile neutrinos in the early Universe and make eV mass sterile neutrinos compatible with cosmology.
Furthermore, such additional interactions could also be present for dark matter and lead to interesting effects.
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About the event
Past events
- 59 ways to leave the SM and implication for Higgs physics
- A multi-messenger study of the Fermi Bubbles: very high energy gamma rays and neutrinos
- Agravity
- Axion cold dark matter: two birds with the same stone
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- Axion Induced Oscillating Electric Dipoles
- Baryogenesis through Neutrino Oscillations: A Unified Perspective
- Bringing Dark Matter into Focus
- Composite models of self-interacting dark matter
- Constraining Annihilating Dark Matter with the Cosmic Microwave Background
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- Correlation between DM production and baryogenesis
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