Phys. Rev. Lett. 91, 041301 (2003) [4 pages]Neutrino Mass and Dark Energy from Weak LensingReceived 11 December 2002; published 24 July 2003 Weak gravitational lensing of background galaxies by intervening matter directly probes the mass distribution in the Universe. This distribution is sensitive to both the dark energy and neutrino mass. We examine the potential of lensing experiments to measure features of both simultaneously. Focusing on the radial information contained in a future deep 4000 deg2 survey, we find that the expected (1-σ) error on a neutrino mass is 0.1 eV, if the dark-energy parameters are allowed to vary. The constraints on dark-energy parameters are similarly restrictive, with errors on w of 0.09. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.041301
DOI:
10.1103/PhysRevLett.91.041301
PACS:
98.62.Sb, 14.60.Pq, 95.35.+d, 98.80.–k
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