Testing the effect of $H_0$ on $f{\sigma }_8$ tension using a Gaussian Process method

En-Kun Li, Minghui Du, Zhi-Huan Zhou +2

Using the $f{\sigma }_8(z)$ redshift space distortion (RSD) data, the ${\sigma }_8^0-{\Omega }_m^0$ tension is studied utilizing a parameterization of growth rate $f(z)={\Omega }_m(z{)}^{\gamma }$. Here, $f(z)$ is derive…