  We report on recent results on the differential cross section for slepton
pair-production at hadron colliders. We use an approach to threshold
resummation, based on soft-collinear effective theory, to quantify the
dynamical enhancement of the partonic threshold region. We evaluate the
resummed invariant mass distribution and total cross section at
next-to-next-to-next-to-leading logarithmic order, and match the result onto
next-to-leading order calculation.
