Oscillating Affleck-Dine condensate and its cosmological implications

Fuminori Hasegawa and Masahiro Kawasaki
Phys. Rev. D 96, 063518 – Published 18 September 2017

Abstract

We study the dynamics of the Affleck-Dine field after inflation in more detail. After inflation, the Affleck-Dine field inevitably oscillates around the potential minimum. This oscillation is hard to decay and can cause accidental suppression of the consequential baryon asymmetry. This suppression is most effective for the model with nonrenormalizable superpotential WADΦ4 (Φ: Affleck-Dine field). It is found that the Affleck-Dine leptogenesis in high-scale inflation, which suffers from serious gravitino overproduction, becomes workable, owing to this effect.

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  • Received 6 July 2017

DOI:https://doi.org/10.1103/PhysRevD.96.063518

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Fuminori Hasegawa* and Masahiro Kawasaki

  • ICRR, The University of Tokyo, Kashiwa 277-8582, Japan and Kavli IPMU (WPI), TODIAS, The University of Tokyo, Kashiwa 277-8583, Japan

  • *fuminori@icrr.u-tokyo.ac.jp
  • kawasaki@icrr.u-tokyo.ac.jp

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Issue

Vol. 96, Iss. 6 — 15 September 2017

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