Testing Schouten--Codazzi Gravity: Cosmological Constraints and Deviations from $\Lambda$CDM

Andoni Fontanet, Andrea Valencia, Shahnawaz A. Adil +4

Schouten--Codazzi gravity (SCG) admits a cosmological background that extends flat $\Lambda$CDM by one integration constant, ${\gamma }_0$. Its contribution to the Friedmann equation scales as $…