  We study the dynamics defined by the Boltzmann equation set in the Euclidean
space $\mathbb{R}^D$ in the vicinity of global Maxwellians with finite mass. A
global Maxwellian is a special solution of the Boltzmann equation for which the
collision integral vanishes identically. In this setting, the dispersion due to
the advection operator quenches the dissipative effect of the Boltzmann
collision integral. As a result, the large time limit of solutions of the
Boltzmann equation in this regime is given by noninteracting, freely
transported states and can be described with the tools of scattering theory.
