Associated squark-electroweakino production with NLO+NLL precision

TL;DR

This paper improves theoretical predictions for associated squark-electroweakino production at the LHC by incorporating NLO+NLL calculations, reducing uncertainties and refining cross section estimates to match the precision needs of upcoming experimental runs.

Contribution

It introduces NLO+NLL resummation for squark-electroweakino production, enhancing prediction accuracy and uncertainty estimation for LHC analyses.

Findings

Significant reduction in scale dependence uncertainty

Modest increase in total cross section

Enhanced precision for LHC Run 3 predictions

Abstract

Motivated by the increased precision expected from LHC Run 3, equally accurate theory predictions are mandatory. As supersymmetry mass limits increase, predictions can be improved by threshold resummation. We examine the effects of including next-to-leading logarithms on associated squark-electroweakino production at the LHC and find a significant reduction in the uncertainty of factorisation and renormalisation scale dependence and a modest increase in the total cross section.