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… Expand
Primordial non-Gaussianity from biased tracers: likelihood analysis of real-space power spectrum and bispectrum
Upcoming galaxy redshift surveys promise to significantly improve current limits on primordial non-Gaussianity (PNG) through measurements of 2- and 3-point correlation functions in Fourier space.Expand
The effective field theory and perturbative analysis for log-density fields
A logarithm transformation over the matter overdensity field δ brings information from the bispectrum and higher-order n-point functions to the power spectrum. We calculate the power spectrum for theExpand
Cosmological parameters from the likelihood analysis of the galaxy power spectrum and bispectrum in real space
We present a joint likelihood analysis of the halo power spectrum and bispectrum in real space. We take advantage of a large set of numerical simulations and of an even larger set of halo mockExpand
Joint analysis of anisotropic power spectrum, bispectrum and trispectrum: application to N-body simulations
We perform for the first time a joint analysis of the monopole and quadrupoles for power spectrum, bispectrum and integrated trispectrum (i-trispectrum) from the redshift space matter field in N-bodyExpand
Optimizing large-scale structure data analysis with the theoretical error likelihood
An important aspect of large-scale structure data analysis is the presence of non-negligible theoretical uncertainties, which become increasingly important on small scales. We show how to incorporateExpand
The Covariance of Squeezed Bispectrum Configurations
We measure the halo bispectrum covariance in a large set of N-body simulations and compare it with theoretical expectations. We find a large correlation among (even mildly) squeezed halo bispectrumExpand
An n-th order Lagrangian forward model for large-scale structure
  • F. Schmidt
  • Physics
  • Journal of Cosmology and Astroparticle Physics
  • 2020
A forward model of matter and biased tracers at arbitrary order in Lagrangian perturbation theory (LPT) is presented. The forward model contains the complete LPT displacement field at any given orderExpand


  • 007
  • 2015
  • Rev. D 92, 123007
  • 2015
  • Rept. 367, 1
  • 2002
and M
  • Zaldarriaga
  • 2016
  • Theor. Phys. 120, 549
  • 2008
  • D’Amico, M. M. Ivanov, L. Senatore, M. Simonović, M. Takada, M. Zaldarriaga, and P. Zhang
  • 2020
  • 042
  • 2020
Planck 2018 results
Author(s): Aghanim, N; Akrami, Y; Ashdown, M; Aumont, J; Baccigalupi, C; Ballardini, M; Banday, AJ; Barreiro, RB; Bartolo, N; Basak, S; Battye, R; Benabed, K; Bernard, JP; Bersanelli, M; Bielewicz,Expand
The cosmological analysis of the SDSS/BOSS data from the Effective Field Theory of Large-Scale Structure
The Effective Field Theory of Large-Scale Structure (EFTofLSS) is a formalism that allows us to predict the clustering of Cosmological Large-Scale Structure in the mildly non-linear regime in anExpand
and D
  • Jeong
  • 2020