Scaling Distribution of Axionic Strings and Estimation of Axion Density from Axionic Domain Walls

Details Scaling Distribution of Axionic Strings and Estimation of Axion Density from Axionic Domain Walls Scaling Distribution of Axionic Strings and Estimation of Axion Density from Axionic Domain Walls

1997-12-11

arxiv.org/abs/hep-ph/9712341v3

Prog.Theor.Phys. 98 (1997) 851

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages (LaTeX), 3 figures, eclepsf.sty, revised figures

Scientific paper

10.1143/PTP.98.851

The damping of the axionic string motion due to the surrounding plasma is estimated by a detailed calculation of the fermion scatter from a global string and it is shown that the friction force on the string can be neglected before the axionic domain wall formation in most cases, which is one of the important necessary conditions for the scaling distribution of the strings. The energy density of the axion produced by the collapse of the axionic domain walls is also evaluated using the axionic string distribution, and it is found to be larger or at least comparable to the axion density which originates from the axionic strings.

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