Speaker
Francesco Pace
(University of Torino)
Description
In this talk I will present the evolution of perturbations in a sub-class of Horndeski models characterised by shift symmetry, considering a very general parametrisation of the background. I will show how the free background parameters affect the evolution of the perturbations and present results on the halo mass function and how we can use it to distinguish these models from the standard LCDM cosmology.
Primary author
Francesco Pace
(University of Torino)