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Article
Report number arXiv:2006.11235 ; INR-TH-2020-035; CERN-TH-2020-103
Title Constraining Early Dark Energy with Large-Scale Structure
Author(s) Ivanov, Mikhail M. (New York U., CCPP ; Moscow, INR) ; McDonough, Evan (MIT, Cambridge, CTP) ; Hill, J. Colin (Columbia U. ; Flatiron Inst., New York) ; Simonović, Marko (CERN) ; Toomey, Michael W. (Brown U.) ; Alexander, Stephon (Brown U.) ; Zaldarriaga, Matias (Princeton, Inst. Advanced Study)
Publication 2020-11-03
Imprint 2020-06-19
Number of pages 27
Note 26 pages, 12 figures. v2: Version to appear in Phys Rev D. Appendices B and C demonstrate that EDE provides a worse fit than LCDM to Planck+BOSS data, and that constraints are not driven by prior volume effects
In: Phys. Rev. D 102 (2020) 103502
DOI 10.1103/PhysRevD.102.103502 (publication)
Subject category hep-th ; Particle Physics - Theory ; hep-ph ; Particle Physics - Phenomenology ; gr-qc ; General Relativity and Cosmology ; astro-ph.CO ; Astrophysics and Astronomy
Abstract An axion-like field comprising $\sim 10\%$ of the energy density of the universe near matter-radiation equality is a candidate to resolve the Hubble tension; this is the "early dark energy" (EDE) model. However, as shown in Hill et al. (2020), the model fails to simultaneously resolve the Hubble tension and maintain a good fit to both cosmic microwave background (CMB) and large-scale structure (LSS) data. Here, we use redshift-space galaxy clustering data to sharpen constraints on the EDE model. We perform the first EDE analysis using the full-shape power spectrum likelihood from the Baryon Oscillation Spectroscopic Survey (BOSS), based on the effective field theory (EFT) of LSS. The inclusion of this likelihood in the EDE analysis yields a $25\%$ tighter error bar on $H_0$ compared to primary CMB data alone, yielding $H_0 = 68.54^{+0.52}_{-0.95}$ km/s/Mpc ($68\%$ CL). In addition, we constrain the maximum fractional energy density contribution of the EDE to $f_{\rm EDE} < 0.072$ ($95\%$ CL). We explicitly demonstrate that the EFT BOSS likelihood yields much stronger constraints on EDE than the standard BOSS likelihood. Including further information from photometric LSS surveys,the constraints narrow by an additional $20\%$, yielding $H_0 = 68.73^{+0.42}_{-0.69}$ km/s/Mpc ($68\%$ CL) and $f_{\rm EDE}<0.053$ ($95\%$ CL). These bounds are obtained without including local-universe $H_0$ data, which is in strong tension with the CMB and LSS, even in the EDE model. We also refute claims that MCMC analyses of EDE that omit SH0ES from the combined dataset yield misleading posteriors. Finally, we demonstrate that upcoming Euclid/DESI-like spectroscopic galaxy surveys can greatly improve the EDE constraints. We conclude that current data preclude the EDE model as a resolution of the Hubble tension, and that future LSS surveys can close the remaining parameter space of this model.
Copyright/License preprint: (License: arXiv nonexclusive-distrib 1.0)
publication: © 2020-2024 authors (License: CC-BY-4.0)



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 Zapis kreiran 2020-07-09, zadnja izmjena 2023-11-30


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