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Title: DESI and other Dark Energy experiments in the era of neutrino mass measurements

Here we present Fisher matrix projections for future cosmological parameter measurements, including neutrino masses, Dark Energy, curvature, modified gravity, the inflationary perturbation spectrum, non-Gaussianity, and dark radiation. We focus on DESI and generally redshift surveys (BOSS, HETDEX, eBOSS, Euclid, and WFIRST), but also include CMB (Planck) and weak gravitational lensing (DES and LSST) constraints. The goal is to present a consistent set of projections, for concrete experiments, which are otherwise scattered throughout many papers and proposals. We include neutrino mass as a free parameter in most projections, as it will inevitably be relevant $-$ DESI and other experiments can measure the sum of neutrino masses to ~ 0.02 eV or better, while the minimum possible sum is 0.06 eV. We note that constraints on Dark Energy are significantly degraded by the presence of neutrino mass uncertainty, especially when using galaxy clustering only as a probe of the BAO distance scale (because this introduces additional uncertainty in the background evolution after the CMB epoch). Using broadband galaxy power becomes relatively more powerful, and bigger gains are achieved by combining lensing survey constraints with redshift survey constraints. Finally, we do not try to be especially innovative, e.g., with complex treatments of potentialmore » systematic errors $-$ these projections are intended as a straightforward baseline for comparison to more detailed analyses.« less
Authors:
 [1] ;  [2] ;  [2] ;  [2] ;  [2] ;  [3]
  1. Univ. of Zurich, Irchel (Switzerland). Inst. of Theoretical Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-112100-2016-JA
Journal ID: ISSN 1475-7516; KA2301020
Grant/Contract Number:
SC00112704
Type:
Accepted Manuscript
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2014; Journal Issue: 05; Journal ID: ISSN 1475-7516
Publisher:
Institute of Physics (IOP)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; dark energy experiments; cosmological parameters from LSS; neutrino masses from cosmology; inflation
OSTI Identifier:
1335437

Font-Ribera, Andreu, McDonald, Patrick, Mostek, Nick, Reid, Beth A., Seo, Hee-Jong, and Slosar, Anže. DESI and other Dark Energy experiments in the era of neutrino mass measurements. United States: N. p., Web. doi:10.1088/1475-7516/2014/05/023.
Font-Ribera, Andreu, McDonald, Patrick, Mostek, Nick, Reid, Beth A., Seo, Hee-Jong, & Slosar, Anže. DESI and other Dark Energy experiments in the era of neutrino mass measurements. United States. doi:10.1088/1475-7516/2014/05/023.
Font-Ribera, Andreu, McDonald, Patrick, Mostek, Nick, Reid, Beth A., Seo, Hee-Jong, and Slosar, Anže. 2014. "DESI and other Dark Energy experiments in the era of neutrino mass measurements". United States. doi:10.1088/1475-7516/2014/05/023. https://www.osti.gov/servlets/purl/1335437.
@article{osti_1335437,
title = {DESI and other Dark Energy experiments in the era of neutrino mass measurements},
author = {Font-Ribera, Andreu and McDonald, Patrick and Mostek, Nick and Reid, Beth A. and Seo, Hee-Jong and Slosar, Anže},
abstractNote = {Here we present Fisher matrix projections for future cosmological parameter measurements, including neutrino masses, Dark Energy, curvature, modified gravity, the inflationary perturbation spectrum, non-Gaussianity, and dark radiation. We focus on DESI and generally redshift surveys (BOSS, HETDEX, eBOSS, Euclid, and WFIRST), but also include CMB (Planck) and weak gravitational lensing (DES and LSST) constraints. The goal is to present a consistent set of projections, for concrete experiments, which are otherwise scattered throughout many papers and proposals. We include neutrino mass as a free parameter in most projections, as it will inevitably be relevant $-$ DESI and other experiments can measure the sum of neutrino masses to ~ 0.02 eV or better, while the minimum possible sum is 0.06 eV. We note that constraints on Dark Energy are significantly degraded by the presence of neutrino mass uncertainty, especially when using galaxy clustering only as a probe of the BAO distance scale (because this introduces additional uncertainty in the background evolution after the CMB epoch). Using broadband galaxy power becomes relatively more powerful, and bigger gains are achieved by combining lensing survey constraints with redshift survey constraints. Finally, we do not try to be especially innovative, e.g., with complex treatments of potential systematic errors $-$ these projections are intended as a straightforward baseline for comparison to more detailed analyses.},
doi = {10.1088/1475-7516/2014/05/023},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 05,
volume = 2014,
place = {United States},
year = {2014},
month = {5}
}