ITP OpenIR  > 理论物理所2014年知识产出
Constraint on the primordial gravitational waves from the joint analysis of BICEP2 and Planck HFI 353 GHz dust polarization data
Cheng, C; Huang, QG; Wang, S; Cheng, C (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2014
发表期刊JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
ISSN1475-7516
期号12页码:44
摘要We make a joint analysis of BICEP2 and recently released Planck HFI 353 GHz dust polarization data, and find that there is no evidence for the primordial gravitational waves and the bound on the tensor-to-scalar ratio becomes r < 0.083 at 95% confidence level in the base Lambda CDM + tensor model. Extending to the model with running of scalar spectral index, the bound is a little bit relaxed to r < 0.116 at 95% confidence level. Our results imply that the inflation model with a single monomial potential is marginally disfavored at around 95% confidence level. Especially, the m(2)phi(2)/2 inflation model is disfavored at more than 2 sigma level. However, the Starobinsky inflation model gives a nice fit.
部门归属[Cheng, Cheng
关键词Particle Physics Models Large-scale Structure Inflationary Universe Natural Inflation Perturbation Anisotropy Cosmology Spectrum Flatness Gravity
学科领域Physics
资助者NSFC [11322545, 11335012]; project of Knowledge Innovation Program of Chinese Academy of Science ; NSFC [11322545, 11335012]; project of Knowledge Innovation Program of Chinese Academy of Science ; NSFC [11322545, 11335012]; project of Knowledge Innovation Program of Chinese Academy of Science ; NSFC [11322545, 11335012]; project of Knowledge Innovation Program of Chinese Academy of Science
DOI10.1088/1475-7516/2014/12/044
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收录类别SCI
语种英语
资助者NSFC [11322545, 11335012]; project of Knowledge Innovation Program of Chinese Academy of Science ; NSFC [11322545, 11335012]; project of Knowledge Innovation Program of Chinese Academy of Science ; NSFC [11322545, 11335012]; project of Knowledge Innovation Program of Chinese Academy of Science ; NSFC [11322545, 11335012]; project of Knowledge Innovation Program of Chinese Academy of Science
WOS记录号WOS:000350115800013
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15552
专题理论物理所2014年知识产出
通讯作者Cheng, C (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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GB/T 7714
Cheng, C,Huang, QG,Wang, S,et al. Constraint on the primordial gravitational waves from the joint analysis of BICEP2 and Planck HFI 353 GHz dust polarization data[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2014(12):44.
APA Cheng, C,Huang, QG,Wang, S,&Cheng, C .(2014).Constraint on the primordial gravitational waves from the joint analysis of BICEP2 and Planck HFI 353 GHz dust polarization data.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(12),44.
MLA Cheng, C,et al."Constraint on the primordial gravitational waves from the joint analysis of BICEP2 and Planck HFI 353 GHz dust polarization data".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .12(2014):44.
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