Precise calibration of the one-loop bispectrum in the effective field theory of large scale structure

@article{Steele2021PreciseCO,
title={Precise calibration of the one-loop bispectrum in the effective field theory of large scale structure},
author={Theodore Steele and Tobias Baldauf},
journal={Physical Review D},
year={2021},
volume={103},
pages={023520}
}
• Published 2 September 2020
• Physics
• Physical Review D
The large-scale structure (LSS) provides a three-dimensional cosmological probe containing significantly more information than the CMB, but its small-scale non-linearities render standard perturbation theory unreliable beyond tree-level. The authors study the bispectrum of the LSS, an important cosmological observable for non-Gaussianity, in the effective field theory approach up to 1-loop order, while taking the full $\mathrm{\ensuremath{\Lambda}}$CDM time-dependence into account, and show…
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