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arXiv 0802.2487hep-ph
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暴胀宇宙中超对称轴子模型的宇宙学问题

Solving Cosmological Problems of Supersymmetric Axion Models in an Inflationary Universe

Masahiro Kawasaki, Kazunori Nakayama

摘要:

我们根据超引力中暴胀子衰变的最新发展,重新审视了轴子模型的暴胀宇宙学。我们发现,如果在暴胀过程中色动子场具有大的初始振幅,并在大爆炸核合成之前衰变,那么所有的宇宙学困难,包括引力子、轴子的过度产生和轴子等曲率涨落,都可以避免。

英文摘要:

We revisit inflationary cosmology of axion models in the light of recent developments on the inflaton decay in supergravity. We find that all the cosmological difficulties, including gravitino, axino overproduction and axionic isocurvature fluctuation, can be avoided if the saxion field has large initial amplitude during inflation and decays before big-bang nucleosynthesis.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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