The large scale structure bootstrap: perturbation theory and bias expansion from symmetries

  title={The large scale structure bootstrap: perturbation theory and bias expansion from symmetries},
  author={Guido D’Amico and Massimo Trabalza Marinucci and Massimo Pietroni and Filippo Vernizzi},
  journal={Journal of Cosmology and Astroparticle Physics},
We investigate the role played by symmetries in the perturbative expansion of the large-scale structure. In particular, we establish which of the coefficients of the perturbation theory kernels are dictated by symmetries and which not. Up to third order in perturbations, for the dark matter density contrast (and for the dark matter velocity) only three coefficients are not fixed by symmetries and depend on the particular cosmology. For generic biased tracers, where number/mass and momentum… 
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