The derivative coupling of baryonic current to the curvature scalar in gravitational baryogenesis scenarios leads to higher order equations for gravitational field. It is shown that these equations are strongly unstable and destroy standard cosmology. This is a generalization of our earlier results obtained for scalar baryons to realistic fermions.
- baryon asymmetry
- cosmology of theories beyond the SM
- modified gravity
- BARYON ASYMMETRY
- MODIFIED GRAVITY