Cosmological measurement of neutrino mass in the presence of leptonic...
Sergio Pastor
asymmetry
Author(s): J. Lesgourgues, S. Pastor, S. Prunet
We show that the small neutrino mass suggested by 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.
Paper: hep-ph/9912363
Dated: Wed, 15 Dec 1999 19:24:07 GMT (14kb)
Comments: 4 pages, 3 PS figures, revtex
Report-no: SISSA 149/99/EP
URL: http://xxx.lanl.gov/abs/hep-ph/9912363