Parton-shower uncertainties with Herwig 7: benchmarks at leading order

Johannes Bellm, Graeme Nail, Simon Plätzer, Peter Schichtel, Andrzej Siódmok

Research output: Contribution to journalArticlepeer-review


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.
Original languageEnglish
Article number665
Number of pages19
JournalThe European Physical Journal C (EPJ C)
Issue number12
Publication statusPublished - 2 Dec 2016


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