ZZ production at nNNLO+PS with MiNNLOPS
Abstract We consider ZZ production in hadronic collisions and present state-of-the-art predictions in QCD perturbation theory matched to parton showers. Next-to-next-to-leading order corrections to the quark-initiated channel are combined with parton showers using the MiNNLOPS method, while next-to-...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2022-01-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP01(2022)072 |
| _version_ | 1819261475554852864 |
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| author | Luca Buonocore Gabriël Koole Daniele Lombardi Luca Rottoli Marius Wiesemann Giulia Zanderighi |
| author_facet | Luca Buonocore Gabriël Koole Daniele Lombardi Luca Rottoli Marius Wiesemann Giulia Zanderighi |
| author_sort | Luca Buonocore |
| collection | DOAJ |
| description | Abstract We consider ZZ production in hadronic collisions and present state-of-the-art predictions in QCD perturbation theory matched to parton showers. Next-to-next-to-leading order corrections to the quark-initiated channel are combined with parton showers using the MiNNLOPS method, while next-to-leading order corrections to the loop-induced gluon fusion channel are matched using the Powheg method. Their combination, dubbed nNNLO+PS, constitutes the best theoretical description of ZZ events to date. Spin correlations, interferences and off-shell effects are included by calculating the full process pp → ℓ + ℓ − ℓ (′)+ ℓ (′)− . We show the crucial impact of higher-order corrections for both quark- and gluon-initiated processes as well as the relevance of the parton shower in certain kinematical regimes. Our predictions are in very good agreement with recent LHC data. |
| first_indexed | 2024-12-23T19:42:24Z |
| format | Article |
| id | doaj.art-a8c315ac740449a7a021d225b6908eb9 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-23T19:42:24Z |
| publishDate | 2022-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-a8c315ac740449a7a021d225b6908eb92022-12-21T17:33:38ZengSpringerOpenJournal of High Energy Physics1029-84792022-01-012022113310.1007/JHEP01(2022)072ZZ production at nNNLO+PS with MiNNLOPSLuca Buonocore0Gabriël Koole1Daniele Lombardi2Luca Rottoli3Marius Wiesemann4Giulia Zanderighi5University of ZurichMax-Planck-Institut für PhysikMax-Planck-Institut für PhysikUniversity of ZurichMax-Planck-Institut für PhysikMax-Planck-Institut für PhysikAbstract We consider ZZ production in hadronic collisions and present state-of-the-art predictions in QCD perturbation theory matched to parton showers. Next-to-next-to-leading order corrections to the quark-initiated channel are combined with parton showers using the MiNNLOPS method, while next-to-leading order corrections to the loop-induced gluon fusion channel are matched using the Powheg method. Their combination, dubbed nNNLO+PS, constitutes the best theoretical description of ZZ events to date. Spin correlations, interferences and off-shell effects are included by calculating the full process pp → ℓ + ℓ − ℓ (′)+ ℓ (′)− . We show the crucial impact of higher-order corrections for both quark- and gluon-initiated processes as well as the relevance of the parton shower in certain kinematical regimes. Our predictions are in very good agreement with recent LHC data.https://doi.org/10.1007/JHEP01(2022)072QCD Phenomenology |
| spellingShingle | Luca Buonocore Gabriël Koole Daniele Lombardi Luca Rottoli Marius Wiesemann Giulia Zanderighi ZZ production at nNNLO+PS with MiNNLOPS Journal of High Energy Physics QCD Phenomenology |
| title | ZZ production at nNNLO+PS with MiNNLOPS |
| title_full | ZZ production at nNNLO+PS with MiNNLOPS |
| title_fullStr | ZZ production at nNNLO+PS with MiNNLOPS |
| title_full_unstemmed | ZZ production at nNNLO+PS with MiNNLOPS |
| title_short | ZZ production at nNNLO+PS with MiNNLOPS |
| title_sort | zz production at nnnlo ps with minnlops |
| topic | QCD Phenomenology |
| url | https://doi.org/10.1007/JHEP01(2022)072 |
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