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Axion inflation and Affleck-Dine baryogenesis

Journal Article · · Journal of Cosmology and Astroparticle Physics
;  [1];  [2]
  1. Department of Physics, Waseda University, Okubo 3-4-1, Shinjuku-ku, Tokyo, 169-8555 Japan (Japan)
  2. Department of Physics, Hokkaido University, Kita-10, Nishi-8, Kita-ku, Sapporo, 060-0810 Japan (Japan)
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.
OSTI ID:
22679899
Journal Information:
Journal of Cosmology and Astroparticle Physics, Journal Name: Journal of Cosmology and Astroparticle Physics Journal Issue: 04 Vol. 2017; ISSN 1475-7516
Country of Publication:
United States
Language:
English

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