The cosmological information on neutrino mixing

Details The cosmological information on neutrino mixing The cosmological information on neutrino mixing

2001-11-06

arxiv.org/abs/hep-ph/0111056v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, LaTeX, JHEP style, talk given at EPS HEP 2001, Budapest, Hungary, 12 - 18 July 2001

Scientific paper

Cosmology provides interesting information on neutrino mixing models with sterile neutrinos. In this case non standard BBN effects can be relevant. We show how the recent measurement of the baryon content from the observations of CMB anisotropies together with the primordial nuclear abundances measurements can be used to constrain them. In particular four neutrino mixing models are potentially at variance with the cosmological observations. We also discuss the possible scenarios from future experiments.

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