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arXiv · 1702.01604

Axion Inflation and Affleck-Dine Baryogenesis

Kensuke Akita·Tatsuo Kobayashi·Hajime Otsuka
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Abstract

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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Kensuke Akita, Tatsuo Kobayashi, Hajime Otsuka. 2017-02-06. Axion Inflation and Affleck-Dine Baryogenesis. https://doi.org/10.1088/1475-7516%2F2017%2F04%2F042

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