Efficient phase-space generation for hadron collider event simulation

We present a simple yet efficient algorithm for phase-space integration at hadron colliders. Individual mappings consist of a single t-channel combined with any number of s-channel decays, and are constructed using diagrammatic information. The factorial growth in the number of channels is tamed by...

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Veröffentlicht in:arXiv.org 2023-07
Hauptverfasser: Bothmann, Enrico, Childers, Taylor, Giele, Walter, Herren, Florian, Hoeche, Stefan, Isaacson, Joshua, Knobbe, Max, Wang, Rui
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creator Bothmann, Enrico
Childers, Taylor
Giele, Walter
Herren, Florian
Hoeche, Stefan
Isaacson, Joshua
Knobbe, Max
Wang, Rui
description We present a simple yet efficient algorithm for phase-space integration at hadron colliders. Individual mappings consist of a single t-channel combined with any number of s-channel decays, and are constructed using diagrammatic information. The factorial growth in the number of channels is tamed by providing an option to limit the number of s-channel topologies. We provide a publicly available, parallelized code in C++ and test its performance in typical LHC scenarios.
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subjects Algorithms
Large Hadron Collider
Physics - High Energy Physics - Experiment
Physics - High Energy Physics - Phenomenology
Topology
title Efficient phase-space generation for hadron collider event simulation
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