Isocurvature fluctuations in the Affleck-Dine mechanism and constraints on inflation models

Journal Article · Wed Oct 15 04:00:00 EDT 2008 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2008/10/017· OSTI ID:22156775

Kasuya, Shinta ^[1]; Kawasaki, Masahiro ^[2]; Takahashi, Fuminobu ^[3]

---

1. Department of Information Science, Kanagawa University, Kanagawa 259-1293 (Japan)
2. Institute for Cosmic Ray Research, University of Tokyo, Chiba 277-8582 (Japan)
3. Institute for the Physics and Mathematics of the Universe, University of Tokyo, Chiba 277-8582 (Japan)

We argue that, in the Affleck-Dine mechanism, baryonic isocurvature fluctuations are generated in most inflation models in supergravity. The inflationary scale and a reheating temperature are constrained in order not to induce too large baryonic isocurvature fluctuations. In particular, high-scale inflation models with high reheating temperatures are disfavored in this context.

• OSTI ID: 22156775
• Journal Information: Journal of Cosmology and Astroparticle Physics, Journal Name: Journal of Cosmology and Astroparticle Physics Journal Issue: 10 Vol. 2008; ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
79 ASTRONOMY AND ASTROPHYSICS
BARYONS
FLUCTUATIONS
INFLATIONARY UNIVERSE
LIMITING VALUES
RIEMANN SPACE
SUPERGRAVITY