Dynamics of Peccei-Quinn breaking field after inflation and axion isocurvature perturbations

Journal Article · Wed Nov 04 04:00:00 EST 2015 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2015/11/003· OSTI ID:22458401

Harigaya, Keisuke; Ibe, Masahiro; Kawasaki, Masahiro ^[1]; Yanagida, Tsutomu T. ^[2]

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1. ICRR, University of Tokyo,Kashiwa, Chiba 277-8582 (Japan)
2. Kavli IPMU (WPI), UTIAS, University of Tokyo,Kashiwa, Chiba 277-8583 (Japan)

The Peccei-Quinn mechanism suffers from the problem of the isocurvature perturbations. The isocurvature perturbations are suppressed if the Peccei-Quinn breaking scale is large during inflation. The oscillation of the Peccei-Quinn breaking field after inflation, however, leads to the formation of domain walls due to the parametric resonance effect. In this paper, we discuss the evolution of the Peccei-Quinn breaking field after inflation in detail, and propose a model where the parametric resonance is ineffective and hence domain walls are not formed. We also discuss consistency of our model with supersymmetric theory.

• Sponsoring Organization: SCOAP3, CERN, Geneva (Switzerland)
• OSTI ID: 22458401
• Journal Information: Journal of Cosmology and Astroparticle Physics, Journal Name: Journal of Cosmology and Astroparticle Physics Journal Issue: 11 Vol. 2015; ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AXIONS
COSMOLOGICAL INFLATION
CP INVARIANCE
DISTURBANCES
OSCILLATIONS
QUANTUM CHROMODYNAMICS
RESONANCE
SUPERSYMMETRY
SYMMETRY BREAKING