Speaker
Description
In this talk we will look at the evidence of the effects induced by seemingly different extensions to the standard cosmological model in the cosmic microwave background (CMB) primary and secondary anisotropies: modified gravity (through the growth index - '$\gamma$', a modification of the growth of linear perturbations in the standard model, and the '$\mu-\Sigma$' framework, a modification of the Poisson and lensing perturbation equations), massive neutrinos and non-vanishing spatial curvature. By looking at their correlations and the differences in the impact they have on cosmological observables, such as the CMB lensing spectrum, we assess whether such additions can be told apart and identify the common root to their detection: the lensing anomaly.