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Cited by 270

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Evidence for Massive Neutrinos from Cosmic Microwave Background and Lensing Observations

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Battye, Richard A., Moss, Adam·2014·Physical Review Letters

Abstract

We discuss whether massive neutrinos (either active or sterile) can reconcile some of the tensions within cosmological data that have been brought into focus by the recently released Planck data. We point out that a discrepancy is present when comparing the primary CMB and lensing measurements both from the CMB and galaxy lensing data using CFHTLenS, similar to that which arises when comparing CMB measurements and SZ cluster counts. A consistent picture emerges and including a prior for the cluster constraints and BAOs we find that for an active neutrino model with three degenerate neutrinos, $\ensuremath{\sum}{m}_{\ensuremath{\nu}}=(0.320\ifmmode\pm\else\textpm\fi{}0.081)\text{ }\text{ }\mathrm{eV}$, whereas for a sterile neutrino, in addition to 3 neutrinos with a standard hierarchy and $\ensuremath{\sum}{m}_{\ensuremath{\nu}}=0.06\text{ }\text{ }\mathrm{eV}$, ${m}_{\ensuremath{\nu},\text{sterile}}^{\text{eff}}=(0.450\ifmmode\pm\else\textpm\fi{}0.124)\text{ }\text{ }\mathrm{eV}$ and $\mathrm{\ensuremath{\Delta}}{N}_{\text{eff}}=0.45\ifmmode\pm\else\textpm\fi{}0.23$. In both cases there is a significant detection of modification to the neutrino sector from the standard model and in the case of the sterile neutrino it is possible to reconcile the BAO and local ${H}_{0}$ measurements. However, a caveat to our result is some internal tension between the CMB and lensing and cluster observations, and the masses are in excess of those estimated from the shape of the matter power spectrum from galaxy surveys.

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Metadata

Authors
Battye, R. A., & Moss, A.
Venue
Physical Review Letters
Published
2014-02-06
Volume
112
Issue
5
Pages
051303-051303
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W1547389517
Cited by
270
References
21
FWCI
28.37
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Evidence for Massive Neutrinos from Cosmic Microwave Background and Lensing Observations. https://app.cochat.ai/papers/10.1103/physrevlett.112.051303
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Battye, R. A., & Moss, A. (2014). Evidence for Massive Neutrinos from Cosmic Microwave Background and Lensing Observations. Physical Review Letters. https://doi.org/10.1103/physrevlett.112.051303

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