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Weighing neutrinos in the presence of a running primordial spectral index
Feng, B; Xia JQ(夏俊卿); Xia, JQ; Yokoyama, J; Zhang, XM; Zhao, GB; Zhang XM(张新民); Zhao GB(赵公博)
2006
Source PublicationJOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Issue12Pages:11
Corresponding AuthorUniv Tokyo, Grad Sch Sci, Res Ctr Early Universe, Tokyo 1130033, Japan ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
SubtypeArticle
AbstractThe three-year Wilkinson Microwave Anisotropy Probe observations, combined with other cosmological observations from galaxy clustering and type Ia supernovae, favour a non-vanishing running of the primordial spectral index independent of the low cosmic microwave background multipoles. Motivated by this feature we study a cosmological constraint on the neutrino mass, which is strongly dependent on what prior we adopt for the spectral shape of primordial fluctuations, taking possible running into account. As a result we find a more stringent constraint on the sum of the three neutrino masses, m(nu) < 0.76 eV (2 sigma), compared with m(nu) < 0.90 eV (2 sigma) for the case where a power law prior is adopted for the primordial spectral shape.
Keywordcosmological neutrinos inflation
Subject AreaAstronomy & Astrophysics; Physics
DOI10.1088/1475-7516/2006/12/011
URL查看原文
Indexed ByINSPIREHEP ; ADS
Language英语
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000243023400010
ADS Bibcode2006JCAP...12..011F
ADS URLhttps://ui.adsabs.harvard.edu/abs/2006JCAP...12..011F
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2006JCAP...12..011F/citations
inspireid718028
inspireURLhttps://inspirehep.net/literature/718028
Citation statistics
Cited Times:9 [INSPIRE]
Cited Times:11 [ADS]
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/240355
Collection理论物理室
粒子天体物理中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Feng, B,Xia JQ,Xia, JQ,et al. Weighing neutrinos in the presence of a running primordial spectral index[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2006(12):11.
APA Feng, B.,夏俊卿.,Xia, JQ.,Yokoyama, J.,Zhang, XM.,...&赵公博.(2006).Weighing neutrinos in the presence of a running primordial spectral index.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(12),11.
MLA Feng, B,et al."Weighing neutrinos in the presence of a running primordial spectral index".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .12(2006):11.
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