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Limits on wCDM from the EFTofLSS with the PyBird code
Journal of Cosmology and Astroparticle Physics ( IF 5.3 ) Pub Date : 2021-01-04 , DOI: 10.1088/1475-7516/2021/01/006
Guido D'Amico 1, 2 , Leonardo Senatore 3, 4 , Pierre Zhang 5, 6, 7
Affiliation  

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.

中文翻译:

带有 PyBird 代码的 EFTofLSS 对 wCDM 的限制

我们应用大尺度结构的有效场论来分析 $w$CDM 宇宙学模型。通过使用功率谱的完整形状和 BOSS 的 BAO 重建后测量值、万神殿的超新星以及 BBN 的先验,我们设置了竞争性的 CMB 独立限制 $w=-1.046_{-0.052}^{ +0.055}$ 68 美元\%$ CL。添加普朗克 CMB 数据后,我们发现 $w=-1.023_{-0.030}^{+0.033}$ 位于 $68\%$ CL。我们的结果是使用 PyBird 获得的,PyBird 是一种新的、基于 Python 的快速代码,我们将其公之于众。
更新日期:2021-01-04
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