Slepton pair production at hadron colliders

In R-parity conserving supersymmetric (SUSY) models, sleptons are produced in pairs at hadron colliders. We show that measurements of the longitudinal single-spin asymmetry at possible polarization upgrades of existing colliders allow for a direct extraction of the slepton mixing angle. A calculation of the transverse-momentum (q(T)) spectrum shows the importance of resummed contributions at next-to-leading logarithmic (NLL) accuracy in the small and intermediate q(T)-regions and little dependence on unphysical scales and non-perturbative (NP) contributions.