Non-linear power spectrum including massive neutrinos

by Julien Lesgourgues (CERN, Geneva)

Friday 13 Mar 2009, 11:30 → 12:30 Europe/Zurich

Univ. de Geneve, Auditoire 234 (Univ. de Geneve, Auditoire 234)

I will present a particular way of computing the non-linear power spectrum of LambdaCDM models in the presence of massive neutrinos, using the so-called Renormalization Group time-flow approach, which amounts to a resummation of perturbative corrections to the matter power spectrum to all orders. I will compare this method to other ones, i.e. one-loop calculations and N-body simulations.