论文标题

用pybird代码从eftoflss限制$ w $ cdm

Limits on $w$CDM from the EFTofLSS with the PyBird code

论文作者

D'Amico, Guido, Senatore, Leonardo, Zhang, Pierre

论文摘要

我们应用大规模结构的有效现场理论来分析$ W $ CDM宇宙学模型。通过使用Boss,Pantheon的Supernovae的全部功率谱和BAO后重建测量,以及BBN的先验,我们将竞争性CMB独立的限制$ W = -1.046 _ { - 0.052}^{+0.055} $ C.L. $ w = -1.023 _ { - 0.030}^{+0.033} $ at $ 68 \%$ c.l ..我们的结果是使用Pybird(一种新的,快速的基于Python的代码)获得的,我们将公开使用。

We apply the Effective Field Theory of Large-Scale Structure to analyze the $w$CDM 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.

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