Axions from string decay

Details Axions from string decay Axions from string decay

1998-07-20

arxiv.org/abs/hep-ph/9807428v2

Nucl.Phys.Proc.Suppl. 72 (1999) 81-86

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 8 figures, to be published in the Proc. of the 5th IFT Axion workshop, Gainesville FL, Mar 13-15 1998, 2 sentences sl

Scientific paper

10.1016/S0920-5632(98)00506-4

We have studied numerically the evolution and decay of axion strings. These global defects decay mainly by axion emission and thus contribute to the cosmological axion density. The relative importance of this source relative to misalignment production of axions depends on the spectrum. Radiation spectra for various string loop configurations are presented. They support the contention that the string decay contribution is of the same order of magnitude as the contribution from misalignment.

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