Axion thermalization in the early universe

Massó, Eduard; Rota, Francesc; Zsembinszki, Gabriel

doi:https://doi.org/10.1103/PhysRevD.66.023004

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Issue date

2002

Author

Massó, Eduard

Rota, Francesc

Zsembinszki, Gabriel

Suggested citation

Massó, Eduard; Rota, Francesc; Zsembinszki, Gabriel; . (2002) . Axion thermalization in the early universe. Physical Review D, 2002, vol. 66, p. 023004. https://doi.org/10.1103/PhysRevD.66.023004.

Abstract

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 PecceiQuinn 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.

URI

http://hdl.handle.net/10459.1/56677

DOI

https://doi.org/10.1103/PhysRevD.66.023004

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Physical Review D, 2002, vol. 66, p. 023004

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