Effect of neutrino asymmetry on the estimation of cosmological parameters
classification
🌌 astro-ph
keywords
cosmologicalneutrinoresultanalysisassumptionassumptionsasymmetrybackground
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The recent analysis of the cosmic microwave background data carried out by the WMAP team seems to show that the sum of the neutrino masses is <0.7 eV. However, this result is not model-independent, depending on precise assumptions on the cosmological model. We study how this result is modified when the assumption of perfect lepton symmetry is dropped out.
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