Axion thermalization in the early universe -: art. no. 023004

被引：115

作者：

Massó, E ^{[1
]}

Rota, F

Zsembinszki, G

机构：

[1] Univ Autonoma Barcelona, Fis Teor Grp, E-08193 Barcelona, Spain

[2] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

来源：

PHYSICAL REVIEW D | 2002年 / 66卷 / 02期

关键词：

D O I：

10.1103/PhysRevD.66.023004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 F-a<1.2x10(12) 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.

引用

页数：5

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