Centre de Physique Théorique


Friday 27 January 2023

12h00 – 13h00, Salle de séminaires, BU

One, two, three: Cosmology at one-loop precision from the two- and three-points functions of galaxies

Pierre Zhang

Driven by an EFT approach to gravitational clustering, I will show how one can extract cosmological information from the distribution of galaxies at large scales in a theoretically-controlled way. Focusing on the two- and three-point functions, I will present precision tools with method validation designed for robust cosmological inference from galaxy surveys. As revealed by recent analyses of BOSS data, this line of action can push down limits on ΛCDM, and extensions.