Constraining $M_\nu$ with the Bispectrum II: The Total Information Content of the Galaxy Bispectrum

Understand

Massive neutrinos suppress the growth of structure on small scales and leave an imprint on large-scale structure that can be measured to constrain their total mass, $M_\nu$.

• With standard analyses of two-point clustering statistics, $M_\nu$ constraints are severely limited by parameter degeneracies.
• Hahn et al.(2020) demonstrated that the bispectrum, the next higher-order statistic, can break these degeneracies and dramatically improve constraints on $M_\nu$ and other cosmological parameters.
• In this paper, we present the constraining power of the redshift-space galaxy bispectrum, $B_0^g$.