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arXiv · hep-ph/9912363

Cosmological measurement of neutrino mass in the presence of leptonic asymmetry

J. Lesgourgues·S. Pastor·S. Prunet
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Abstract

We show that even the smallest neutrino mass consistent with the Super--Kamiokande data is relevant for cosmological models of structure formation and cosmic microwave background (CMB) anisotropies, provided that a relic neutrino asymmetry exists. We calculate the precision with which a 0.07 eV neutrino mass could be extracted from CMB anisotropy and large-scale structure data by the future Planck satellite and Sloan Digital Sky Survey. We find that such a mass can be detected, assuming a large relic neutrino asymmetry still allowed by current experimental data. This measurement of the absolute value of the neutrino mass would be crucial for our understanding of neutrino models.

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J. Lesgourgues, S. Pastor, S. Prunet. 2000-06-13. Cosmological measurement of neutrino mass in the presence of leptonic asymmetry. https://doi.org/10.1103/physrevd.62.023001

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