Axion inflation and Affleck-Dine baryogenesis

作者:Akita Kensuke*; Kobayashi Tatsuo; Otsuka Hajime
来源:Journal of Cosmology and Astroparticle Physics, 2017, 2017(4): 042.
DOI:10.1088/1475-7516/2017/04/042

摘要

String theory generically predicts the coupling between the Affleck-Dine field and axion field through higher-dimensional operators. We thus explore the Affleck-Dine baryogenesis on an axion background. It turns out that the axion oscillation produces an enough amount of baryon asymmetry of the Universe just after the inflation, even without a soft supersymmetry-breaking A-term. This baryogenesis scenario is applicable to the string axion inflation.

  • 出版日期2017-4