Non-local gravity and comparison with observational datasets

@article{Dirian2014NonlocalGA,
  title={Non-local gravity and comparison with observational datasets},
  author={Yves Dirian and Stefano Foffa and Martin Kunz and Michele Maggiore and Valeria Pettorino},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2014},
  volume={2015},
  pages={044 - 044}
}
We study the cosmological predictions of two recently proposed non-local modifications of General Relativity. Both models have the same number of parameters as ΛCDM, with a mass parameter m replacing the cosmological constant. We implement the cosmological perturbations of the non-local models into a modification of the CLASS Boltzmann code, and we make a full comparison to CMB, BAO and supernova data. We find that the non-local models fit these datasets very well, at the same level as ΛCDM… 

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