Axion inflation and Affleck-Dine baryogenesis

Kensuke Akita; Tatsuo Kobayashi; Hajime Otsuka

doi:10.1088/1475-7516/2017/04/042

Axion inflation and Affleck-Dine baryogenesis

Kensuke Akita, Tatsuo Kobayashi, Hajime Otsuka

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

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.

Original language	English
Article number	042
Journal	Journal of Cosmology and Astroparticle Physics
Volume	2017
Issue number	4
DOIs	https://doi.org/10.1088/1475-7516/2017/04/042
Publication status	Published - 2017 Apr 26

Keywords

axions
baryon asymmetry
string theory and cosmology

ASJC Scopus subject areas

Astronomy and Astrophysics

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10.1088/1475-7516/2017/04/042

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AB - 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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Axion inflation and Affleck-Dine baryogenesis

Abstract

Keywords

ASJC Scopus subject areas

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