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NLO electroweak automation and precise predictions for W + multijet production at the LHC

Kallweit, S.; Lindert, J.M.; Maierhöfer, P.; Pozzorini, S.; Schönherr, M.

NLO electroweak automation and precise predictions for W + multijet production at the LHC Thumbnail


Authors

S. Kallweit

J.M. Lindert

P. Maierhöfer

S. Pozzorini



Abstract

We present a fully automated implementation of next-to-leading order electroweak (NLO EW) corrections in the OpenLoops matrix-element generator combined with the Sherpa and Munich Monte Carlo frameworks. The process-independent character of the implemented algorithms opens the door to NLO QCD+EW simulations for a vast range of Standard Model processes, up to high particle multiplicity, at current and future colliders. As a first application, we present NLO QCD+EW predictions for the production of positively charged on-shell W bosons in association with up to three jets at the Large Hadron Collider. At the TeV energy scale, due to the presence of large Sudakov logarithms, EW corrections reach the 20–40% level and play an important role for searches of physics beyond the Standard Model. The dependence of NLO EW effects on the jet multiplicity is investigated in detail, and we find that W+multijet final states feature genuinely different EW effects as compared to the case of W + 1 jet.

Citation

Kallweit, S., Lindert, J., Maierhöfer, P., Pozzorini, S., & Schönherr, M. (2015). NLO electroweak automation and precise predictions for W + multijet production at the LHC. Journal of High Energy Physics, 2015(4), Article 012. https://doi.org/10.1007/jhep04%282015%29012

Journal Article Type Article
Acceptance Date Mar 6, 2015
Online Publication Date Apr 2, 2015
Publication Date Apr 30, 2015
Deposit Date Mar 15, 2019
Publicly Available Date Apr 12, 2019
Journal Journal of High Energy Physics
Print ISSN 1126-6708
Publisher Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Peer Reviewed Peer Reviewed
Volume 2015
Issue 4
Article Number 012
DOI https://doi.org/10.1007/jhep04%282015%29012

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.





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