Early or phantom dark energy, self-interacting, extra, or massive neutrinos, primordial magnetic fields, or a curved universe: An exploration of possible solutions to the $H_0$ and ${\sigma }_8$ problems

Helena García Escudero, Jui-Lin Kuo, Ryan E. Keeley +1

In this paper we explore the existing tensions in the local cosmological expansion rate, $H_0$, and amplitude of the clustering of large-scale structure at $8h^{-1}\mathrm{Mpc}$…