Constraints on the neutrino mass and mass hierarchy from cosmological observations

doi:http://dx.doi.org/10.1140/epjc/s10052-016-4334-z

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	Constraints on the neutrino mass and mass hierarchy from cosmological observations
	Huang, QG; Wang, K; Wang, S; 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.
刊名	EUROPEAN PHYSICAL JOURNAL C
	2016
卷号	76 期号:9 页码:489
DOI	http://dx.doi.org/10.1140/epjc/s10052-016-4334-z
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.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21538]
专题	理论物理研究所_理论物理所1978-2010年知识产出
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.
推荐引用方式 GB/T 7714	Huang, QG,Wang, K,Wang, S,et al. Constraints on the neutrino mass and mass hierarchy from cosmological observations[J]. EUROPEAN PHYSICAL JOURNAL C,2016,76(9):489.
APA	Huang, QG,Wang, K,Wang, S,Huang, QG ,&Huang, QG .(2016).Constraints on the neutrino mass and mass hierarchy from cosmological observations.EUROPEAN PHYSICAL JOURNAL C,76(9),489.
MLA	Huang, QG,et al."Constraints on the neutrino mass and mass hierarchy from cosmological observations".EUROPEAN PHYSICAL JOURNAL C 76.9(2016):489.