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- W3117803709 abstract "Associating the formation sites of haloes with the maxima of the smoothed linear density field, we present non-perturbative predictions for the Lagrangian and evolved halo correlation functions that are valid at all separations. In Lagrangian space, we find significant deviations from the perturbative bias calculation at small scales, in particular, a pronounced exclusion region where $xi=-1$ for maxima of unequal height. Our predictions are in good agreement with the Lagrangian clustering of dark matter proto-haloes reconstructed from N-body simulations. Our predictions for the mean infall and velocity dispersion of haloes, which differ from the local bias expansion, show a similar level of agreement with simulations. Finally, we displace the initial density peaks according to the Zeldovich approximation in order to predict the late-time clustering of dark matter haloes. While we are able to reproduce the early evolution of this conserved set of tracers, our approximation fails at the collapse epoch (z=0) on non-linear scales r<10Mpc/h, emphasizing the need for a non-perturbative treatment of the halo displacement field." @default.
- W3117803709 created "2021-01-05" @default.
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- W3117803709 date "2021-04-27" @default.
- W3117803709 modified "2023-10-17" @default.
- W3117803709 title "Nonperturbative halo clustering from cosmological density peaks" @default.
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- W3117803709 doi "https://doi.org/10.1103/physrevd.103.083530" @default.
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