Data publication: Mass density vs. energy density at cosmological scales

The dataset consists of matter power spectra at four redshifts (z=80,50,15,0) generated by simulating Lambda-Cold Dark Matter cosmology with respect to two distinct weak-field expansion schemes (one relevant to the energy density and the other relevant to the mass density of matter) as described in the associated paper. Additionally, it contains the power spectrum of the gravitational potential at the same redshift values, based on the expansion scheme of the screening approach only.