Soft-gluon resummation for slepton-pair production at hadron colliders
Alessandro Broggio, Matthias Neubert, Leonardo Vernazza (Mainz, University)
TL;DR
This paper applies a novel effective field theory approach to perform high-precision soft-gluon resummation at NNNLL order for slepton-pair production in SUSY models, improving predictions for collider experiments.
Contribution
It introduces a new method for soft-gluon resummation at NNNLL order for slepton-pair production, enhancing accuracy over previous approaches.
Findings
Resummed invariant-mass distribution and total cross section at Tevatron and LHC.
Matched resummed results with NLO fixed-order calculations.
Studied virtual SUSY effects within the resummation framework.
Abstract
We use a recent approach to soft-gluon resummation based on effective field theory to implement soft-gluon resummation at NNNLL order for slepton-pair production in SUSY extensions of the Standard Model. This approach resums large logarithmic corrections arising from the dynamical enhancement of the partonic threshold region caused by steeply falling parton luminosities. We evaluate the resummed invariant-mass distribution and total cross section for slepton-pair production at the Tevatron and LHC, matching our results onto NLO fixed-order calculations. As a byproduct, we also study virtual SUSY effects in the context of soft-gluon resummation for the Drell-Yan process.
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