The negative BAO shift in the Lyα forest from cosmological simulations

We present the first measurement of the Ly\alpha forest BAO shift parameter from cosmological simulations. In particular, we generate a suite of 1000 accurate effective field-level bias-based Ly\alpha forest simulations of volume V=(1 \, h^{-1} \, {\rm Gpc})^3 at z=2, both in real and redshift space, calibrated upon two fixed-and-paired... Show more