Matching the Nagy-Soper parton shower at next-to-leading order
M. Czakon, H. B. Hartanto, M. Kraus, M. Worek
TL;DR
This paper introduces a method to combine next-to-leading order QCD calculations with the Nagy-Soper parton shower, improving the accuracy of particle collision simulations at the LHC.
Contribution
It presents the first implementation of MC@NLO-like matching with the Nagy-Soper shower within the HELAC-DIPOLES framework, addressing previous uncertainties.
Findings
First results for pp -> top anti-top j + X at 8 TeV LHC
Discussion of resummation effects on observables
Implementation within DEDUCTOR and HELAC-NLO
Abstract
We present an MC@NLO-like matching of next-to-leading order QCD calculations with the Nagy-Soper parton shower. An implementation of the algorithm within the HELAC-DIPOLES Monte Carlo generator is used to address the uncertainties and ambiguities of the matching scheme. First results obtained using the Nagy-Soper parton shower implementation in DEDUCTOR in conjunction with the HELAC-NLO framework are given for the pp -> top anti-top j + X process at the LHC with sqrt(s)=8 TeV. Effects of resummation are discussed for various observables.
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