The halo model with beyond-linear halo bias: unbiasing cosmological
  constraints from galaxy-galaxy lensing and clustering
  We determine the error introduced in a joint halo model analysis of
galaxy-galaxy lensing and galaxy clustering observables when adopting the
standard approximation of linear halo bias. Considering the Kilo-Degree Survey,
we forecast that ignoring the non-linear halo bias would result in up to
5$\sigma$ offsets in the recovered cosmological parameters describing structure
growth, $S_8$, and the matter density parameter, $\Omega_{\mathrm{m}}$. The
direction of these offsets are shown to depend on the freedom afforded to the
halo model through other nuisance parameters. We conclude that a beyond-linear
halo bias correction must therefore be included in future cosmological halo
model analyses of large-scale structure observables on non-linear scales.
