Brane Inflation After WMAP Three Year Results
arXiv:hep-th/0604186 · doi:10.1088/1475-7516/2006/11/010
Abstract
WMAP three-year data favors a red power spectrum at the level of 2 standard deviations, which provides a stringent constraint on the inflation models. In this note we use this data to constrain brane inflation models and find that KKLMMT model can not fit WMAP+SDSS data at the level of 1 standard deviation and a fine-tuning, eight parts in thousand at least, is needed at the level of 2 standard deviation.
10 pages, 3 figures; references added; version for publication in JCAP