Knowledge Management System of Institute of Theoretical Physics, CAS
Ma, YZ; Huang, QG; Zhang, X; Ma, YZ (reprint author), Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada. | |
Confronting brane inflation with Planck and pre-Planck data | |
发表期刊 | PHYSICAL REVIEW D |
语种 | 英语 |
关键词 | Flatness Universe Horizon |
摘要 | In this paper, we compare brane inflation models with the Planck data and the pre-Planck data (which combines WAMP, ACT, SPT, BAO and H-0 data). The Planck data prefer a spectral index less than unity at more than 5 sigma confidence level, and a running of the spectral index at around 2 sigma confidence level. We find that the KKLMMT model can survive at the level of 2 sigma only if the parameter beta (the conformal coupling between the Hubble parameter and the inflaton) is less than O(10(-3)), which indicates a certain level of fine-tuning. The IR DBI model can provide a slightly larger negative running of spectral index and red tilt, but in order to be consistent with the non-Gaussianity constraints from Planck, its parameter also needs fine-tuning at some level. |
2013 | |
ISSN | 1550-7998 |
卷号 | 87期号:10页码:103516 |
学科领域 | Physics |
收录类别 | SCI |
项目资助者 | CITA National Fellowship; Natural Science and Engineering Research Council of Canada; Knowledge Innovation Program of the Chinese Academy of Science; National Natural Science Foundation of China [10821504, 10705041, 10975032, 11175042]; National Ministry of Education of China [NCET-09-0276, N100505001, N120505003] ; CITA National Fellowship; Natural Science and Engineering Research Council of Canada; Knowledge Innovation Program of the Chinese Academy of Science; National Natural Science Foundation of China [10821504, 10705041, 10975032, 11175042]; National Ministry of Education of China [NCET-09-0276, N100505001, N120505003] ; CITA National Fellowship; Natural Science and Engineering Research Council of Canada; Knowledge Innovation Program of the Chinese Academy of Science; National Natural Science Foundation of China [10821504, 10705041, 10975032, 11175042]; National Ministry of Education of China [NCET-09-0276, N100505001, N120505003] ; CITA National Fellowship; Natural Science and Engineering Research Council of Canada; Knowledge Innovation Program of the Chinese Academy of Science; National Natural Science Foundation of China [10821504, 10705041, 10975032, 11175042]; National Ministry of Education of China [NCET-09-0276, N100505001, N120505003] |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.itp.ac.cn/handle/311006/15360 |
专题 | SCI期刊论文 |
通讯作者 | Ma, YZ (reprint author), Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada. |
推荐引用方式 GB/T 7714 | Ma, YZ,Huang, QG,Zhang, X,et al. Confronting brane inflation with Planck and pre-Planck data[J]. PHYSICAL REVIEW D,2013,87(10):103516. |
APA | Ma, YZ,Huang, QG,Zhang, X,&Ma, YZ .(2013).Confronting brane inflation with Planck and pre-Planck data.PHYSICAL REVIEW D,87(10),103516. |
MLA | Ma, YZ,et al."Confronting brane inflation with Planck and pre-Planck data".PHYSICAL REVIEW D 87.10(2013):103516. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Confronting brane in(374KB) | 开放获取 | 使用许可 | 请求全文 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论