Dark matter and a new gauge boson through kinetic mixing

@article{Chun2011DarkMA,
  title={Dark matter and a new gauge boson through kinetic mixing},
  author={Eung Jin Chun and Jong-Chul Park and Stefano Scopel},
  journal={Journal of High Energy Physics},
  year={2011},
  volume={2011},
  pages={1-21}
}
We consider a hidden sector model of dark matter which is charged under a hidden U(1)X gauge symmetry. Kinetic mixing of U(1)X with the Standard Model hypercharge U(1)Y is allowed to provide communication between the hidden sector and the Standard Model sector. We present various limits on the kinetic mixing parameter and the hidden gauge coupling constant coming from various low energy observables, electroweak precision tests, and the right thermal relic density of the dark matter. Saturating… 

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