  We present lattice Monte Carlo calculations of fermion-dimer scattering in
the limit of zero-range interactions using the adiabatic projection method. The
adiabatic projection method uses a set of initial cluster states and Euclidean
time projection to give a systematically improvable description of the
low-lying scattering cluster states in a finite volume. We use L\"uscher's
finite-volume relations to determine the s-wave, p-wave, and d-wave phase
shifts. For comparison, we also compute exact lattice results using Lanczos
iteration and continuum results using the Skorniakov-Ter-Martirosian equation.
For our Monte Carlo calculations we use a new lattice algorithm called impurity
lattice Monte Carlo. This algorithm can be viewed as a hybrid technique which
incorporates elements of both worldline and auxiliary-field Monte Carlo
simulations.
