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EnglishWe present a calculation of the next-to-leading-order QCD and electroweak corrections to WWW production with leptonically decaying W bosons at the LHC, fully taking into account off-shell contributions, intermediary resonances, and spin correlations. The contributions of the quark-antiquark-induced electroweak correction to typical fiducial cross sections at the LHC are of the order of 5–8 % and grow to tens of percent in the high-energy tails of distributions. We observe strong cancellations among the positive quark-photon and negative quark-antiquark-induced electroweak corrections. In addition to results based on full 2 → 6/7-particle next-to-leading-order matrix elements, we present a calculation based on the triple-pole approximation, which expands the matrix elements around the poles of three simultaneously resonant W bosons. The triple-pole approximation performs particularly well for integrated cross sections and for differential cross sections that are insensitive to off-shell effects, such as angular and rapidity distributions.
Next-to-leading-order QCD and electroweak corrections to triple-W production with leptonic decays at the LHC / S. Dittmaier, G. Knippen, C. Schwan. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1126-6708. - 2020:2(2020 Feb 01).
| Titolo: | Next-to-leading-order QCD and electroweak corrections to triple-W production with leptonic decays at the LHC | |
| Autori: | SCHWAN, CHRISTOPHER (Ultimo) | |
| Parole Chiave: | Electroweak interaction; NLO Computations | |
| Settore Scientifico Disciplinare: | Settore FIS/02 - Fisica Teorica, Modelli e Metodi Matematici | |
| Data di pubblicazione: | 1-feb-2020 | |
| Rivista: | ||
| Tipologia: | Article (author) | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1007/JHEP02(2020)003 | |
| Appare nelle tipologie: | 01 - Articolo su periodico |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| 1912.04117.pdf | Pre-print (manoscritto inviato all'editore) | Open Access Visualizza/Apri | ||
| Dittmaier2020_Article_Next-to-leading-orderQCDAndEle.pdf | Publisher's version/PDF | Open Access Visualizza/Apri |
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http://hdl.handle.net/2434/794366
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