On the origin of dark matter axions
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E.P.S Shellard; R.A Battye
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Article
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1999
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Elsevier Science
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English
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We discuss the possible sources of dark matter axions in the early universe. In the standard thermal scenario, an axion string network forms at the Peccei-Quinn phase transition T~fa and then radiatively decays into a cosmological background of axions; to be the dark matter, these axions must have a