Mild bounds on bigravity from primordial gravitational waves - Fasiello, Matteo; Ribeiro, Raquel H. (Journal of cosmology and astroparticle physics, 2015)
Keywords: AMPLITUDES; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; COSMOLOGY; GALACTIC EVOLUTION; GRAVITATIONAL WAVES; IMPLEMENTATION; LIMITING VALUES; MASS; POTENTIALS; RECOMBINATION; SPACE; TENSORS