Can cosmology detect hierarchical neutrino masses?

Details Can cosmology detect hierarchical neutrino masses? Can cosmology detect hierarchical neutrino masses?

2002-11-06

arxiv.org/abs/astro-ph/0211106v2

Phys.Rev. D67 (2003) 085017

Astronomy and Astrophysics

Astrophysics

9 pages, 6 figs, Revtex, minor changes, one figure added for clarity

Scientific paper

10.1103/PhysRevD.67.085017

We have carefully analysed the potential of future Cosmic Microwave Background (CMB) and Large Scale Structure (LSS) measurements to probe neutrino masses. We perform a Fisher matrix analysis on a 9-dimensional cosmological parameter space and find that data from the Planck CMB experiment combined with the Sloan Digital Sky Survey (SDSS) can measure a neutrino mass of 0.12 eV at 95% conf. This is almost at the level of the 0.06 eV mass suggested by current neutrino oscillation data. A future galaxy survey with an order of magnitude larger survey volume than the SDSS would allow for a neutrino mass determination of 0.03-0.05 eV (95% conf.).

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