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题名: Constraints on the neutrino mass and mass hierarchy from cosmological observations
作者: Huang, QG ;  Wang, K ;  Wang, S
刊名: EUROPEAN PHYSICAL JOURNAL C
出版日期: 2016
卷号: 76, 期号:9, 页码:489
学科分类: Physics
DOI: http://dx.doi.org/10.1140/epjc/s10052-016-4334-z
通讯作者: Huang, QG (reprint author), Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China. ;  Huang, QG (reprint author), Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China.
文章类型: Article
英文摘要: Considering the mass splitting between three active neutrinos, we represent the new constraints on the sum of neutrino mass Sigma m(nu) by updating the anisotropic analysis of the Baryon Acoustic Oscillation (BAO) scale in the CMASS and LOWZ galaxy samples from Data Release 12 of the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS DR12). Combining the BAO data of 6dFGS, MGS, LOWZ and CMASS with Planck 2015 data of temperature anisotropy and polarizations of the Cosmic Microwave Background (CMB), we find that the 95 % C.L. upper bounds on Sigma m(nu) refer to Sigma m(nu, NH) < 0.18 eV for the normal hierarchy (NH), Sigma m(nu, IH) < 0.20 eV for the inverted hierarchy (IH) and Sigma m(nu, DH) < 0.15 eV for the degenerate hierarchy (DH), respectively, and the normal hierarchy is slightly preferred over the inverted one (Delta chi(2) chi(2)(NH) - chi(2)(IH) similar or equal to -3.4). In addition, the additional relativistic degrees of freedom and massive sterile neutrinos are neither favored at present.
类目[WOS]: Physics, Particles & Fields
关键词[WOS]: OSCILLATION SPECTROSCOPIC SURVEY ;  BARYON ACOUSTIC-OSCILLATIONS ;  TELESCOPE LENSING SURVEY ;  LARGE-SCALE STRUCTURE ;  HUBBLE CONSTANT ;  WEIGHING NEUTRINOS ;  POWER SPECTRUM ;  GALAXY SURVEYS ;  CFHTLENS
收录类别: SCI
项目资助者: Top-Notch Young Talents Program of China ;  NSFC [11322545, 11335012, 11575271] ;  National Natural Science Foundations of China [11447613]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21538
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Recommended Citation:
Huang, QG,Wang, K,Wang, S. Constraints on the neutrino mass and mass hierarchy from cosmological observations[J]. EUROPEAN PHYSICAL JOURNAL C,2016,76(9):489.
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