  In ultracold atoms settings, inelastic light scattering is a preeminent
technique to reveal static and dynamic properties at nonzero momentum. In this
work, we investigate an array of one-dimensional trapped Bose gases, by
measuring both the energy and the momentum imparted to the system via light
scattering experiments. The measurements are performed in the weak perturbation
regime, where these two quantities - the energy and momentum transferred - are
expected to be related to the dynamical structure factor of the system. We
discuss this relation, with special attention to the role of in-trap dynamics
on the transferred momentum.
