Reweighting QCD matrix-element and parton-shower calculations
High Energy Physics - Phenomenology
2016-11-11 v3 High Energy Physics - Experiment
Abstract
We present the implementation and validation of the techniques used to efficiently evaluate parametric and perturbative theoretical uncertainties in matrix-element plus parton-shower simulations within the Sherpa event-generator framework. By tracing the full and PDF dependences, including the parton-shower component, as well as the fixed-order scale uncertainties, we compute variational event weights on-the-fly, thereby greatly reducing the computational costs to obtain theoretical-uncertainty estimates.
Keywords
Cite
@article{arxiv.1606.08753,
title = {Reweighting QCD matrix-element and parton-shower calculations},
author = {Enrico Bothmann and Marek Schönherr and Steffen Schumann},
journal= {arXiv preprint arXiv:1606.08753},
year = {2016}
}
Comments
44 pages, 9 figures; new version according to published article