PIRSA:25120047 Scientific Series Particle Physics

DOI10.48660/25120047

Series: Particle Physics

Zhang, Y. (2025). Nature of Dark Matter in the Primordial Matter Power Spectrum. Perimeter Institute. https://pirsa.org/25120047

Zhang, Yue. Nature of Dark Matter in the Primordial Matter Power Spectrum. Perimeter Institute, Dec. 03, 2025, https://pirsa.org/25120047 

@misc{ pirsa_PIRSA:25120047,
  doi = {10.48660/25120047},
  url = {https://pirsa.org/25120047},
  author = {Zhang, Yue},
  keywords = {Particle Physics},
  language = {en},
  title = {Nature of Dark Matter in the Primordial Matter Power Spectrum},
  publisher = {Perimeter Institute},
  year = {2025},
  month = {dec},
  note = {PIRSA:25120047 see, \url{https://pirsa.org}}
}

Abstract

I discuss particle physics models for dark matter that can leave a non-trivial imprint in the dark matter density perturbations and serve as targets of precise cosmological measurements. Scenarios include sterile neutrino dark matter enabled by novel neutrino self-interaction, thermal relic via an entropy dilution mechanism, and dark matter mass generated by a first-order phase transition in the early universe. Interplay with other probes will also be discussed when applicable.

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