Affleck-Dine dynamics, Q-ball formation, and thermalization

Journal Article · Thu Oct 15 04:00:00 EDT 2009 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.80.085010· OSTI ID:21325400

Tsumagari, Mitsuo I ^[1]

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1. School of Physics and Astronomy, University of Nottingham, University Park, Nottingham NG7 2RD (United Kingdom)

We present both analytically and numerically a consistent analysis of the dynamics from the Affleck-Dine (AD) mechanism to the subsequent semiclassical evolution in both gravity-mediated and gauge-mediated models. We obtain analytically the elliptic motions in the AD dynamics as the analogy of the well-known Kepler-problem, and by solving the equations of motion on a lattice, we find that the semiclassical evolution goes through three distinct stages as a nonequilibrium process of reheating the Universe: prethermalization, bubble collisions and thermalization. We report that the second stage of our case lasts rather long compared to the second stage of the reheating case, and the thermalization process is unique due to the presence of 'thermal Q-balls'.

• OSTI ID: 21325400
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 8 Vol. 80; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COLLISIONS
EQUATIONS OF MOTION
GAUGE INVARIANCE
GRAVITATION
LATTICE FIELD THEORY
SEMICLASSICAL APPROXIMATION
SIMULATION
THERMALIZATION
UNIVERSE