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Li, J; Huang, QG
Measuring the spectral running from cosmic microwave background and primordial black holes
发表期刊EUROPEAN PHYSICAL JOURNAL C
语种英语
关键词BARYON ACOUSTIC-OSCILLATIONS INFLATIONARY UNIVERSE FLATNESS HORIZON SAMPLE
摘要We constrain the spectral running by combining cosmic microwave background (CMB) data, baryon acoustic oscillation (BAO) data and the constraint from primordial black holes (PBHs). We find that the constraint from PBHs has a significant impact on the running of running of scalar spectral index, and a power-law scalar power spectrum without running is consistent with observational data once the constraint from PBHs is taken into account. In addition, from the constraints on the slow-roll parameters, the derived tensor spectral index in the single-field slow-roll inflationmodel is quite small, namely vertical bar n(t)vertical bar less than or similar to 9.3 x 10(-3) which will be very difficult to be measured by CMB data only in the future, and the absolute value of derived running of tensor spectral index is not larger than 2.1 x 10(-4) at 95% confidence level.
2018
ISSN1434-6044
卷号78期号:11页码:980
学科领域Physics
学科门类Physics, Particles & Fields
DOI10.1140/epjc/s10052-018-6471-z
收录类别SCIE
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22777
专题理论物理所科研产出_SCI论文
作者单位1.[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, 19A Yuquan Rd, Beijing 100049, Peoples R China
4.Yangzhou Univ, Coll Phys Sci & Technol, Ctr Gravitat & Cosmol, Yangzhou 225009, Jiangsu, Peoples R China
5.Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat, Changsha 410081, Hunan, Peoples R China
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GB/T 7714
Li, J,Huang, QG. Measuring the spectral running from cosmic microwave background and primordial black holes[J]. EUROPEAN PHYSICAL JOURNAL C,2018,78(11):980.
APA Li, J,&Huang, QG.(2018).Measuring the spectral running from cosmic microwave background and primordial black holes.EUROPEAN PHYSICAL JOURNAL C,78(11),980.
MLA Li, J,et al."Measuring the spectral running from cosmic microwave background and primordial black holes".EUROPEAN PHYSICAL JOURNAL C 78.11(2018):980.
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