Speaker
Description
Threshold resummation is a key complement to perturbative QCD for predicting cross-sections at hadron colliders. Logarithms that grow large in the threshold limit, when emitted gluons are soft, are included to all orders in the strong coupling, thus stabilizing the theoretical predictions. Resummation of these logarithms has been studied extensively, e.g. reaching next-to-next-to-leading logarithmic (NNLL) accuracy for the Drell-Yan process, in what is called leading-power (LP) resummation. Recently, more focus has been put on resumming also those logarithms that are kinematically suppressed with respect to the LP ones, which may also give an appreciable contribution. These are referred to as next-to-leading-power (NLP) logarithms.
In this talk I will briefly outline how NLP logarithms arise and are resummed in the Drell-Yan process, before applying this resummation to the pair-production of sleptons, which are produced similarly. I will discuss how their production cross-section is impacted by the inclusion of these effects, both by a shift in the cross-section prediction and by lowering the dependence upon the renormalization scale.
