Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2003-12-04
Phys.Lett.B595:55-59,2004
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages, 2 figures. Only unconstrained bias fit included. References added
Scientific paper
10.1016/j.physletb.2004.06.049
We investigate whether cosmological data suggest the need for massive neutrinos. We employ galaxy power spectrum measurements from the Sloan Digital Sky Survey (SDSS) and the Two Degree Field Galaxy Redshift Survey (2dFGRS), along with cosmic microwave background (CMB) data from the Wilkinson Microwave Anisotropy Probe (WMAP) and 27 other CMB experiments. We also use the measurement of the Hubble parameter from the Hubble Space Telescope (HST) Key Project. We find the sum of the neutrino masses to be smaller than 0.75 eV at 2\sigma (1.1 eV at 3\sigma).
Barger Vernon
Marfatia Danny
Tregre Adam
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