= Primordial bispectrum shape function
{title2=$S(k_1,k_2,k_3)\propto(k_1k_2k_3)^2B(k_1,k_2,k_3)$}
= Bispectrum shape function
{synonym}
For a scale-invariant <primordial bispectrum>, the displayed shape function is invariant under common rescaling of all three wavenumbers. It isolates triangle dependence from the overall <power spectrum> amplitude. It indicates intrinsic shape preference but alone does not determine observational signal-to-noise, which also depends on transfer functions, <covariance> and survey weights.
Back to article page
