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Cosmological constraint on "neutrino mass" from CMB anisotropies with primordial magnetic field

  • The University of Tokyo
  • National Astronomical Observatory of Japan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

It is one of the biggest challenge in particle physics and cosmology to determine the mass of neutrinos. Current neutrinoless double beta decay experiment show that the total neutrino mass is smaller than 1-6 eV. In recent years, precise CMB data make it possible to constrain neutrino masses cosmologically. It says that the total neutrino mass is smaller than 2 eV in standard ΛCDM model.1 But if there are other physical processes which affects the CMB anisotropies, such constraint may be changed. A primordial magnetic field (PMF) is one of such physical processes. In this work, we con- strain the total neutrino mass from CMB anisotropies with the PMF effect.

Original languageEnglish
Title of host publicationProceedings of the 6th International Heidelberg Conference on Dark Matter in Astroparticle and Particle Physics, Dark 2007
PublisherWorld Scientific Publishing Co. Pte Ltd
Pages510-513
Number of pages4
ISBN (Print)9812814345, 9789812814340
DOIs
StatePublished - 2008
Externally publishedYes
Event6th International Heidelberg Conference on Dark Matter in Astro and Particle Physics, Dark 2007 - Sydney, NSW, Australia
Duration: 24 Sep 200728 Sep 2007

Publication series

NameProceedings of the 6th International Heidelberg Conference on Dark Matter in Astroparticle and Particle Physics, Dark 2007

Conference

Conference6th International Heidelberg Conference on Dark Matter in Astro and Particle Physics, Dark 2007
Country/TerritoryAustralia
CitySydney, NSW
Period24/09/0728/09/07

Keywords

  • Massive neutrino
  • Neutrino mass
  • Primordial magnetic field

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