Slepton pair production in the POWHEG BOX
Barbara Jager, Andreas von Manteuffel, Stephan Thier
TL;DR
This paper introduces a new implementation for slepton pair production at hadron colliders within the POWHEG BOX framework, integrating NLO QCD calculations with parton-shower simulations for realistic experimental predictions.
Contribution
It provides the first implementation of slepton pair production in POWHEG BOX, including SUSY parameter interface and detailed analysis of QCD corrections and parton-shower effects.
Findings
NLO QCD corrections are significant across distributions.
Parton-shower effects are minimal for color-neutral particles.
Jet distributions are notably affected by the parton shower.
Abstract
We present an implementation for slepton pair production at hadron colliders in the POWHEG BOX, a framework for combining next-to-leading order QCD calculations with parton-shower Monte-Carlo programs. Our code provides a SUSY Les Houches Accord interface for setting the supersymmetric input parameters. Decays of the sleptons and parton-shower effects are simulated with PYTHIA. Focussing on a representative point in the supersymmetric parameter space we show results for kinematic distributions that can be observed experimentally. While next-to-leading order QCD corrections are sizable for all distributions, the parton shower affects the color-neutral particles only marginally. Pronounced parton-shower effects are found for jet distributions.
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