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

  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},
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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