Limits on $w$CDM from the EFTofLSS with the PyBird code
Cosmology and Nongalactic Astrophysics2021-02-16v2General Relativity and Quantum CosmologyHigh Energy Physics - PhenomenologyHigh Energy Physics - Theory
We apply the Effective Field Theory of Large-Scale Structure to analyze the wCDM cosmological model. By using the full shape of the power spectrum and the BAO post-reconstruction measurements from BOSS, the Supernovae from Pantheon, and a prior from BBN, we set the competitive CMB-independent limit w=−1.046−0.052+0.055 at 68% C.L.. After adding the Planck CMB data, we find w=−1.023−0.030+0.033 at 68% C.L.. Our results are obtained using PyBird, a new, fast Python-based code which we make publicly available.
Cite
@article{arxiv.2003.07956,
title = {Limits on $w$CDM from the EFTofLSS with the PyBird code},
author = {Guido D'Amico and Leonardo Senatore and Pierre Zhang},
journal= {arXiv preprint arXiv:2003.07956},
year = {2021}
}
Comments
27 pages, 6 tables, 8 figures. v2: 33 pages, 8 tables, 9 figures, matches JCAP published version. The PyBird code is available at https://github.com/pierrexyz/pybird