Soft gluon resummation for squark and gluino pair-production at hadron colliders

TL;DR

This paper investigates the impact of soft gluon emissions on squark and gluino pair production at hadron colliders, providing resummation techniques and numerical predictions for Tevatron and LHC energies.

Contribution

It introduces the calculation of one-loop anomalous dimensions for all production channels, enabling next-to-leading-logarithmic resummation of soft gluon effects.

Findings

Enhanced theoretical predictions near production threshold

Numerical results for Tevatron and LHC energies

Improved understanding of soft gluon corrections in SUSY particle production

Abstract

We report on the study of soft gluon effects in the production of squarks and gluinos at hadron colliders. Close to production threshold, the emission of soft gluon results in the appearence of large logarithmic corrections in the theoretical expressions. In order to resum these corrections at next-to-leading-logarithmic accuracy appropriate one-loop anomalous dimensions have to be calculated. We present the calculation of the anomalous dimensions for all production channels of squarks and gluinos and provide numerical predictions for the Tevatron and the LHC.