Renato Candido Tavares

Scale-Dependent Disformal Dark Matter: Resolving Cosmic Tensions with S-Matrix Positivity and Gravitational Wave Invariance

We present a fully covariant, scale-dependent disformal coupling within the dark sector (SD-DDM) designed to simultaneously resolve the Hubble (H0) and clustering (S8) tensions. By strictly confining the Bekenstein disformal transformation to Cold Dark Matter (CDM) and preserving...

Scale-Dependent Disformal Dark Matter: Resolving Cosmic Tensions with S-Matrix Positivity and Gravitational Wave Invariance

We present a fully covariant, scale-dependent disformal coupling within the dark sector (SD-DDM) designed to simultaneously resolve the Hubble (H0) and clustering (S8) tensions. By strictly confining the Bekenstein disformal transformation to Cold Dark Matter (CDM) and preserving...