Proca in the sky

Understand

The standard model of cosmology, the $\Lambda$CDM model, describes the evolution of the Universe since the Big Bang with just a few parameters, six in its basic form.

• Despite being the simplest model, direct late-time measurements of the Hubble constant compared with the early-universe measurements result in the so-called $H_0$ tension.
• It is claimed that a late time resolution is predestined to fail when different cosmological probes are combined.
• In this work, we shake the ground of this belief with a very simple model.