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Title:
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Axion thermalization in the early universe
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Author:
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Massó, Eduard; Rota, Francesc; Zsembinszki, Gabriel
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Abstract:
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We reanalyze the conditions under which we have a primordial thermal population of axions. We extend a previous study and take into account processes involving gluons and quarks. We conclude that if the Peccei Quinn scale satisfies Fa,1.231012 GeV there is thermal axion production. In this case, a period in the early universe exists where axions would interact with the QCD plasma and we point out that nonthermal axions
produced before the end of this period would thermalize. |
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Publication date:
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2002 |
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Subject(s):
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Axions |
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Rights:
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(c) American Physical Society, 2002 |
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Document type:
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article |
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Published by:
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American Physical Society
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