Fate of thermal log type Q balls

Journal Article · Mon Nov 15 00:00:00 EST 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.103534· OSTI ID:21503617

Chiba, Takeshi; Kamada, Kohei; Kasuya, Shinta; Yamaguchi, Masahide ^[1]

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1. Department of Physics, College of Humanities and Sciences, Nihon University, Tokyo 156-8550 (Japan)

We study time evolution of the Q ball in thermal logarithmic potential using lattice simulations. As the temperature decreases due to the cosmic expansion, the thermal logarithmic term in the potential is eventually overcome by a mass term, and we confirm that the Q ball transforms from the thick-wall type to the thin-wall type for a positive coefficient of radiative corrections to the mass term, as recently suggested. Moreover, we find that the Q ball finally ''melts down'' when the Q-ball solution disappears. We also discuss the effects of this phenomenon on the detectability of gravitational waves from the Q-ball formation.

• OSTI ID: 21503617
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 10; Other Information: DOI: 10.1103/PhysRevD.82.103534; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPUTERIZED SIMULATION
EVOLUTION
EXPANSION
GRAVITATIONAL WAVES
LATTICE FIELD THEORY
MASS
MATHEMATICAL SOLUTIONS
RADIATIVE CORRECTIONS
CONSTRUCTIVE FIELD THEORY
CORRECTIONS
FIELD THEORIES
QUANTUM FIELD THEORY
SIMULATION