Soft Gluon Resummation for Associated Squark-Electroweakino Production at the LHC

Abstract

We perform a threshold resummation calculation for the associated production of squarks and electroweakinos at the LHC to next-to-leading-logarithmic (NLL) accuracy, presenting analytical results for the soft anomalous dimensions and hard matching coefficients and combining the resummed results with fixed-order NLO QCD predictions accounting for non-universal squark masses and mixings. Numerically, NLL contributions enhance the NLO cross section by 2-6% for squark masses between 1-3 TeV, while reducing the scale dependence from about ±10% to below ±5%. The calculation is implemented in the public program Resummino.