Axion inflation and Affleck-Dine baryogenesis
Journal Article
·
· Journal of Cosmology and Astroparticle Physics
- Department of Physics, Waseda University, Okubo 3-4-1, Shinjuku-ku, Tokyo, 169-8555 Japan (Japan)
- 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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