Parton Shower Matching Systematics in Vector-Boson-Fusion WW Production
Michael Rauch, Simon Pl\"atzer
TL;DR
This paper analyzes the uncertainties in simulating vector-boson-fusion WW production at NLO with parton-shower matching, comparing different algorithms within the Herwig 7 framework.
Contribution
It provides a detailed comparison of matching systematics in VBF WW production using various shower algorithms and matching schemes.
Findings
Differences observed between angular-ordered and dipole-based showers.
Impact of subtractive and multiplicative matching schemes quantified.
Guidelines for reducing systematic uncertainties in VBF WW simulations.
Abstract
We perform a detailed analysis of next-to-leading order plus parton-shower matching in vector-boson-fusion WW production including leptonic decays. The study is performed in the Herwig 7 framework interfaced to VBFNLO 3, using the angular-ordered and dipole-based parton-shower algorithms combined with the subtractive and multiplicative matching algorithms.
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