PIRSA:24110088 Scientific Series Particle Physics

DOI10.48660/24110088

Series: Particle Physics

(2024). Probing Long-Range Force Between Neutrinos from Cosmic Structures. Perimeter Institute. https://pirsa.org/24110088

Probing Long-Range Force Between Neutrinos from Cosmic Structures. Perimeter Institute, Nov. 26, 2024, https://pirsa.org/24110088 

@misc{ pirsa_PIRSA:24110088,
  doi = {10.48660/24110088},
  url = {https://pirsa.org/24110088},
  author = {},
  keywords = {Particle Physics},
  language = {en},
  title = {Probing Long-Range Force Between Neutrinos from Cosmic Structures},
  publisher = {Perimeter Institute},
  year = {2024},
  month = {nov},
  note = {PIRSA:24110088 see, \url{https://pirsa.org}}
}

Abstract

The long-range force between neutrinos is poorly constrained. In the late-time universe, a long-range force that is a few orders of magnitude stronger than gravity can induce Jeans perturbation instability in the non-relativistic cosmic neutrino background, drastically changing its large-scale behavior. In this talk, I will describe how the cosmic neutrino background evolves and forms nonlinear bound states in the presence of a long-range force. I will then discuss the impact of these neutrino bound states on the matter structures in the universe, and the constraints due to the absence of these signals.

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