Transverse-Momentum Resummation for Slepton-Pair Production at the LHC

We perform a first precision calculation of the transverse-momentum (qT ) distribution of slepton pair and slepton-sneutrino associated production at the CERN Large Hadron Collider (LHC). We implement soft-gluon resummation at the next-to-leading logarithmic (NLL) level and consistently match the obtained result to the pure fixed-order perturbative result at leading order (LO) in the QCD coupling constant, i.e. O(αs). We give numerical predictions for τ̃1τ̃ ∗ 1 and τ̃1ν̃ ∗ τ + τ̃ ∗ 1 ν̃τ production, also implementing recent parameterizations of non-perturbative effects. The results show a relevant contribution of resummation both in the small and intermediate qT -regions and little dependence on unphysical scales and non-perturbative contributions.