WEIGHING NEUTRINOS WITH GALAXY SURVEYS

We show that galaxy redshift surveys sensitively probe the neutrino ma ss, with eV mass neutrinos suppressing power by a factor of 2. The Slo an Digital Sky Survey can potentially detect N nearly degenerate massi ve neutrino species with mass m(v) greater than or similar to 0.65(Ome ga(m)h(2)/0.1N)(0.8) eV at better than 2 sigma once microwave backgrou nd experiments measure two other cosmological parameters. Significant overlap exists between this region and that implied by the Liquid Scin tillator Neutrino Detector experiment, and even m(v) similar to 0.01-0 .1 eV, as implied by the atmospheric anomaly, can affect cosmological measurements.