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arXiv · 1605.01338

Parton Shower Uncertainties with Herwig 7: Benchmarks at Leading Order

Johannes Bellm·Graeme Nail·Simon Plätzer·Peter Schichtel·Andrzej Siódmok
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Abstract

We perform a detailed study of the sources of perturbative uncertainty in parton shower predictions within the Herwig 7 event generator. We benchmark two rather different parton shower algorithms, based on angular-ordered and dipole-type evolution, against each other. We deliberately choose leading order plus parton shower as the benchmark setting to identify a controllable set of uncertainties. This will enable us to reliably assess improvements by higher-order contributions in a follow-up work.

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Johannes Bellm, Graeme Nail, Simon Plätzer, Peter Schichtel, Andrzej Siódmok. 2016-05-04. Parton Shower Uncertainties with Herwig 7: Benchmarks at Leading Order. https://doi.org/10.1140/epjc%2Fs10052-016-4506-x

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