Fixed-order and merged parton-shower predictions for WW and WWj production at the LHC including NLO QCD and EW corrections
Published version
Peer-reviewed
Repository URI
Repository DOI
Change log
Authors
Bräuer, Stephan
Denner, Ansgar
Pellen, Mathieu https://orcid.org/0000-0001-5324-2765
Schönherr, Marek
Schumann, Steffen
Abstract
Abstract: First, we present a combined analysis of pp →μ+vμe−v¯e and pp →μ+vμe−v¯ej at next-to-leading order, including both QCD and electroweak corrections. Second, we provide all-order predictions for pp →μ+vμe−v¯e+jets using merged parton-shower simulations that also include approximate EW effects. A fully inclusive sample for WW production is compared to the fixed-order computations for exclusive zero- and one-jet selections. The various higher-order effects are studied in detail at the level of cross sections and differential distributions for realistic experimental set-ups. Our study confirms that merged predictions are significantly more stable than the fixed-order ones in particular regarding ratios between the two processes.
Description
Keywords
Regular Article - Theoretical Physics, NLO Computations, QCD Phenomenology
Journal Title
Journal of High Energy Physics
Conference Name
Journal ISSN
1029-8479
Volume Title
2020
Publisher
Springer Berlin Heidelberg