Towards Constraining Affleck-Dine Baryogenesis

Abstract

Affleck-Dine baryogenesis is preconditioned on a certain structure of non-renormalizable operators in the Kahler potential. In this paper, we geometrically characterize the resulting constraint on the field space Kahler geometry and survey the Lagrangian for correlated predictions. The Affleck-Dine field backreacts on the inflaton, and by mapping the backreacted potential to an inflaton potential with a step, we find that current CMB data severely constrain some versions of the scenario.

43 pages, 5 figures; v2: version accepted for publication in JHEP, fixed typos, added figures, and improved the presentation of section 4