PIRSA:12010118 Scientific Series Particle Physics

DOI10.48660/12010118

Series: Particle Physics

Lin, T. (2012). On Symmetric and Asymmetric Light Dark Matter. Perimeter Institute. https://pirsa.org/12010118

Lin, Tongyan. On Symmetric and Asymmetric Light Dark Matter. Perimeter Institute, Jan. 06, 2012, https://pirsa.org/12010118 

@misc{ pirsa_PIRSA:12010118,
  doi = {10.48660/12010118},
  url = {https://pirsa.org/12010118},
  author = {Lin, Tongyan},
  keywords = {Particle Physics},
  language = {en},
  title = {On Symmetric and Asymmetric Light Dark Matter},
  publisher = {Perimeter Institute},
  year = {2012},
  month = {jan},
  note = {PIRSA:12010118 see, \url{https://pirsa.org}}
}

Abstract

I will discuss cosmological, astrophysical and collider constraints on thermal dark matter with mass in the range 1 MeV to 10 GeV. CMB observations can be evaded if the DM relic density is sufficiently asymmetric, while collider constraints generally require sufficiently light mediators. These light mediators can give rise to significant DM self-interactions, and I will describe bounds on such interactions from dark matter halo shapes. Finally, I will describe how these constraints map onto the parameter space of DM-electron and DM-nucleon scattering cross sections for direct detection.

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