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arXiv 1702.01604hep-phastro-ph.COhep-th
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Axion Inflation and Affleck-Dine Baryogenesis

Kensuke Akita, Tatsuo Kobayashi, Hajime Otsuka

英文摘要:

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.

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