Brane inflation revisited after WMAP five-year results

被引：15

作者：

Ma, Yin-Zhe ^{[1
]}

Zhang, Xin ^{[2
]}

机构：

[1] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[2] Northeastern Univ, Coll Sci, Shenyang 110004, Liaoning, Peoples R China

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2009年 / 03期

关键词：

inflation; cosmological applications of theories with extra dimensions; BACKGROUND POWER SPECTRUM; MOSAIC OBSERVATIONS; 2003; FLIGHT; ANISOTROPY; BOOMERANG; FLATNESS; UNIVERSE; HORIZON; L=3500; MAPS;

D O I：

10.1088/1475-7516/2009/03/006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, we revisit brane inflation models with the WMAP five-year results. The WMAP five-year data favor a red-tilted power spectrum of primordial fluctuations at the level of two standard deviations, which is the same as the WMAP three-year result qualitatively, but quantitatively the spectral index is slightly greater than the three-year value. This result can bring impacts on brane inflation models. According to the WMAP five-year data, we find that the KKLMMT model can survive at the level of one standard deviation, and the fine-tuning of the parameter beta can be alleviated to a certain extent at the level of two standard deviations

引用

页数：20

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