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arXiv 0711.3083hep-ph
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超对称轴子模型的宇宙学意义

Cosmological implications of supersymmetric axion models

Masahiro Kawasaki, Kazunori Nakayama, Masato Senami

摘要:

我们推导出轴子模型超对称扩展的一般约束条件,特别是仔细考虑了轴子的宇宙学效应。结果发现,对于每个质量范围的saxion从keV到TeV,严重的约束的能量密度的saxion。再加上axino的约束,我们得到严格的再加热温度的上限。

英文摘要:

We derive general constraints on supersymmetric extension of axion models, in particular paying careful attention to the cosmological effects of saxion. It is found that for every mass range of the saxion from keV to TeV, severe constraints on the energy density of the saxion are imposed. Together with constraints from axino we obtain stringent upper bounds on the reheating temperature.

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