ITP OpenIR  > SCI期刊论文
Li, Jun; Huang, Qing-Guo
Inflation model selection revisited
Source PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
Language英语
KeywordBARYON ACOUSTIC-OSCILLATIONS LARGE-SCALE STRUCTURE NATURAL INFLATION COSMOLOGY FLATNESS UNIVERSE HORIZON SAMPLE
AbstractWe update the constraints on the power spectra of primordial curvature perturbation and tensor perturbation including Planck data 2015 (P15) and recently released BICEP2/Keck data (BK15), Baryon Acoustic Oscillation data and the Type Ia supernovae data. We find that the upper limits of tensor-to-scalar ratio are 0.061, 0.064 and 0.072 at 95% confidence level (CL) in the Lambda CDM+r, Lambda CDM+r+alpha(s) and Lambda CDM+r+alpha(s)+beta(s) models respectively, where alpha(s) and beta(s) are the running of scalar spectral index and running of running. The inflation model with a concave potential is favored at more than 95% CL. In addition, parametrizing the slow-roll parameter epsilon similar to 1/N-p, where N is the e-folding number before the end of inflation and taken in the range of [50, 60] and [14, 75] respectively, we conclude that the inflation model with a monomial potential V(phi) similar to phi(n) is disfavored at more than 95% CL, and both the Starobinsky inflation model and brane inflation model are still consistent with the data.
2019
ISSN1674-7348
Volume62Issue:12Pages:120412
Cooperation Status国内
Subject AreaPhysics
MOST Discipline CataloguePhysics, Multidisciplinary
DOI10.1007/s11433-019-9446-1
Indexed BySCIE
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27006
CollectionSCI期刊论文
Affiliation1.[Li, Jun
2.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Jun,Huang, Qing-Guo. Inflation model selection revisited[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2019,62(12):120412.
APA Li, Jun,&Huang, Qing-Guo.(2019).Inflation model selection revisited.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,62(12),120412.
MLA Li, Jun,et al."Inflation model selection revisited".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 62.12(2019):120412.
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