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IFAE 2007 pp 265-270 | Cite as

Cosmological Constraints on Neutrino Masses

  • Alessandro Melchiorri
  • Francesco De Bernardis
  • Luca Pagano
  • Paolo Serra
Conference paper

Abstract

Using recent cosmological data, we derive upper limits on the sum of neutrino masses of Σm ν < 0.17 eV at 95% c.l. We then constrain the hypothesis of a fourth, sterile, massive neutrino. For the 3 massless + 1 massive neutrino case we bound the mass of the sterile neutrino to m s < 0.26 eV at 95% c.l. These results exclude at high significance the sterile neutrino hypothesis as an explanation of the LSND anomaly.

Keywords

Neutrino Masse Cosmic Microwave Background Neutrino Oscillation Sterile Neutrino Cosmological Constraint 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Italia 2008

Authors and Affiliations

  • Alessandro Melchiorri
    • 1
  • Francesco De Bernardis
    • 1
  • Luca Pagano
    • 1
  • Paolo Serra
    • 1
  1. 1.Physics Department and sezione INFNUniversity of Rome “La Sapienza”RomeItaly

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