Towards a 5-sigma constraint on the sum of the neutrino masses

I will discuss the effects that neutrino masses induce on the clustering of matter and galaxies, on the halo mass function and on the void size function. I will then introduce the Quijote simulations, a set of 23000 N-body simulations containing, at a single redshift, more than 3.3 trillions of particles. I will show how I have used those simulations to quantify the large information content that is embedded into the combination of clustering and abundance. Finally, I will discuss where the information is coming from and its comparison with linear theory.

Speaker: Paco Villaescusa Navarro, CCA