Next-to-leading-order QCD and electroweak corrections to triple-W production with leptonic decays at the LHC
Abstract We 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...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2020-02-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP02(2020)003 |
| _version_ | 1818459695864610816 |
|---|---|
| author | Stefan Dittmaier Gernot Knippen Christopher Schwan |
| author_facet | Stefan Dittmaier Gernot Knippen Christopher Schwan |
| author_sort | Stefan Dittmaier |
| collection | DOAJ |
| description | Abstract We 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. |
| first_indexed | 2024-12-14T23:18:27Z |
| format | Article |
| id | doaj.art-7e3ccf4375d742a8bbbbc27877451c7c |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-14T23:18:27Z |
| publishDate | 2020-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-7e3ccf4375d742a8bbbbc27877451c7c2022-12-21T22:44:01ZengSpringerOpenJournal of High Energy Physics1029-84792020-02-012020212810.1007/JHEP02(2020)003Next-to-leading-order QCD and electroweak corrections to triple-W production with leptonic decays at the LHCStefan Dittmaier0Gernot Knippen1Christopher Schwan2Albert-Ludwigs-Universität Freiburg, Physikalisches InstitutAlbert-Ludwigs-Universität Freiburg, Physikalisches InstitutTif Lab, Dipartimento di Fisica, Università di Milano and INFN — Sezione di MilanoAbstract We 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.https://doi.org/10.1007/JHEP02(2020)003NLO ComputationsElectroweak interaction |
| spellingShingle | Stefan Dittmaier Gernot Knippen Christopher Schwan Next-to-leading-order QCD and electroweak corrections to triple-W production with leptonic decays at the LHC Journal of High Energy Physics NLO Computations Electroweak interaction |
| title | Next-to-leading-order QCD and electroweak corrections to triple-W production with leptonic decays at the LHC |
| title_full | Next-to-leading-order QCD and electroweak corrections to triple-W production with leptonic decays at the LHC |
| title_fullStr | Next-to-leading-order QCD and electroweak corrections to triple-W production with leptonic decays at the LHC |
| title_full_unstemmed | Next-to-leading-order QCD and electroweak corrections to triple-W production with leptonic decays at the LHC |
| title_short | Next-to-leading-order QCD and electroweak corrections to triple-W production with leptonic decays at the LHC |
| title_sort | next to leading order qcd and electroweak corrections to triple w production with leptonic decays at the lhc |
| topic | NLO Computations Electroweak interaction |
| url | https://doi.org/10.1007/JHEP02(2020)003 |
| work_keys_str_mv | AT stefandittmaier nexttoleadingorderqcdandelectroweakcorrectionstotriplewproductionwithleptonicdecaysatthelhc AT gernotknippen nexttoleadingorderqcdandelectroweakcorrectionstotriplewproductionwithleptonicdecaysatthelhc AT christopherschwan nexttoleadingorderqcdandelectroweakcorrectionstotriplewproductionwithleptonicdecaysatthelhc |