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arXiv 0807.2181astro-ph
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WMAP5后的单场充盈

Single-Field Inflation After WMAP5

Laila Alabidi, James E. Lidsey

摘要:

根据WMAP的五年数据分析了通货膨胀的单场模型。假设瞬时再加热,我们发现,模块化/新的通货膨胀模型与小功率的有效暴胀子自相互作用比以前更强烈的约束。当e-折叠的数量小于60时,具有三次幂的模型位于2 σ区域之外。我们还发现,通货膨胀的中间模型的预测不重叠的1西格玛地区,无论单项式的潜力的权力。我们分析了一些紫外线,DBI braneworld的情况下,涉及包裹和多膜配置,其中暴胀动能接近最大允许的扭曲几何。在所有的情况下,我们发现弯曲喉道的参数强烈地受到观测的约束。

英文摘要:

Single-field models of inflation are analysed in light of the WMAP five-year data. Assuming instantaneous reheating, we find that modular/new inflation models with small powers in the effective inflaton self-interaction are more strongly constrained than previously. The model with a cubic power lies outside the 2 sigma regime when the number of e-folds is less than 60. We also find that the predictions for the intermediate model of inflation do not overlap the 1 sigma region regardless of the power of the monomial potential. We analyse a number of ultra-violet, DBI braneworld scenarios involving both wrapped and multiple-brane configurations, where the inflaton kinetic energy is close to the maximum allowed by the warped geometry. In all cases, we find that the parameters of the warped throat are strongly constrained by observations.

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