Abstract
We investigate how baryogenesis can occur by the presence of an -related gravitational term. We study various cases of gravity, and we discuss in detail the effect of the novel terms on the baryon-to-entropy ratio. Additionally, we study the constraints imposed by the observational values of the baryon-to-entropy ratio, and we discuss how more generalized cosmologies can contribute successfully, in a viable and consistent way, in the gravitational baryogenesis mechanism.
- Received 30 July 2016
DOI:https://doi.org/10.1103/PhysRevD.94.124005
© 2016 American Physical Society
Physics Subject Headings (PhySH)
Gravitation, Cosmology & Astrophysics