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We combine the constraints from the recent Ly-alpha forest and bias analysisof the SDSS with previous constraints from SDSS galaxy clustering, the latestsupernovae, and WMAP . Combining WMAP and the lya we find for the primordialslope n_s=0.98\pm 0.02. We see no evidence of running, dn/d\ln k=-0.003\pm0.010, a factor of 3 improvement over previous constraints. We also find noevidence of tensors, r<0.36 (95% c.l.). A positive correlation between tensorsand primordial slope disfavors chaotic inflation type models with steep slopes:V \propto \phi^4 is outside the 3-sigma contour. For the amplitude we findsigma_8=0.90\pm 0.03 from the lyaf and WMAP alone. We find no evidence ofneutrino mass: for the case of 3 massive neutrino families with an inflationaryprior, \sum m_{\nu}<0.42eV and the mass of lightest neutrino is m_1<0.13eV at95% c.l. For the 3 massless + 1 massive neutrino case we find m_{\nu}<0.79eVfor the massive neutrino, excluding at 95% c.l. all neutrino mass solutionscompatible with the LSND results. We explore dark energy constraints in modelswith a fairly general time dependence of dark energy equation of state, findingOmega_lambda=0.72\pm 0.02, w(z=0.3)=-0.98^{+0.10}_{-0.12}, the latter changingto w(z=0.3)=-0.92^{+0.09}_{-0.10} if tensors are allowed. We find no evidencefor variation of the equation of state with redshift,w(z=1)=-1.03^{+0.21}_{-0.28}. These results rely on the current understandingof the lyaf and other probes, which need to be explored further bothobservationally and theoretically, but extensive tests reveal no evidence ofinconsistency among different data sets used here.Comment: 21 pages, 17 figures, submitted to PR

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Cosmological parameter analysis including SDSS Ly<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>α</mml:mi></mml:math>forest and galaxy bias: Constraints on the primordial spectrum of fluctuations, neutrino mass, and dark energy

Cosmological parameter analysis including SDSS Lyαforest and galaxy bias: Constraints on the primordial spectrum of fluctuations, neutrino mass, and dark energy