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Limits on Neutrino Mass from Cosmic Structure Formation

Masataka Fukugita·Guo-Chin Liu·Naoshi Sugiyama
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Abstract

We consider the effect of three species of neutrinos with nearly degenerate mass on the cosmic structure formation in a low matter-density universe within a hierarchical clustering scenario with a flat initial perturbation spectrum. The matching condition for fluctuation powers at the COBE scale and at the cluster scale leads to a strong upper limit on neutrino mass. For a flat universe with matter density parameter Omega=0.3, we obtain m_nu<0.6eV for the Hubble constant H_0<80km/s/Mpc. Allowing for the more generous parameter space limited by Omega<0.4, H_0<80km/s/Mpc and age t_0>11.5Gyr, the limit is 0.9eV.

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Masataka Fukugita, Guo-Chin Liu, Naoshi Sugiyama. 1999-08-24. Limits on Neutrino Mass from Cosmic Structure Formation. https://doi.org/10.1103/physrevlett.84.1082

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