W + W − production at NNLO+PS with MINNLOPS
Abstract We consider W + W − production in hadronic collisions and present the computation of next-to-next-to-leading order accurate predictions consistently matched to parton showers (NNLO+PS) using the MiNNLOPS method. Spin correlations, interferences and off-shell effects are included by calculat...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2021-11-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP11(2021)230 |
| _version_ | 1818458763425742848 |
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| author | Daniele Lombardi Marius Wiesemann Giulia Zanderighi |
| author_facet | Daniele Lombardi Marius Wiesemann Giulia Zanderighi |
| author_sort | Daniele Lombardi |
| collection | DOAJ |
| description | Abstract We consider W + W − production in hadronic collisions and present the computation of next-to-next-to-leading order accurate predictions consistently matched to parton showers (NNLO+PS) using the MiNNLOPS method. Spin correlations, interferences and off-shell effects are included by calculating the full process pp → e + ν e μ − ν ¯ $$ \overline{\nu} $$ μ . This is the first NNLO+PS calculation for W + W − production that does not require an a-posteriori multi-differential reweighting. The evaluation time of the two-loop contribution has been reduced by more than one order of magnitude through a four-dimensional cubic spline interpolation. We find good agreement with the inclusive and fiducial cross sections measured by ATLAS and CMS. Both NNLO corrections and matching to parton showers are important for an accurate simulation of the W + W − signal, and their matching provides the best description of fully exclusive W + W − events to date. |
| first_indexed | 2024-12-14T23:03:38Z |
| format | Article |
| id | doaj.art-c59c24d2f24244bb8d8eaca26fd8c78a |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-14T23:03:38Z |
| publishDate | 2021-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-c59c24d2f24244bb8d8eaca26fd8c78a2022-12-21T22:44:24ZengSpringerOpenJournal of High Energy Physics1029-84792021-11-0120211114610.1007/JHEP11(2021)230W + W − production at NNLO+PS with MINNLOPSDaniele Lombardi0Marius Wiesemann1Giulia Zanderighi2Max-Planck-Institut für PhysikMax-Planck-Institut für PhysikMax-Planck-Institut für PhysikAbstract We consider W + W − production in hadronic collisions and present the computation of next-to-next-to-leading order accurate predictions consistently matched to parton showers (NNLO+PS) using the MiNNLOPS method. Spin correlations, interferences and off-shell effects are included by calculating the full process pp → e + ν e μ − ν ¯ $$ \overline{\nu} $$ μ . This is the first NNLO+PS calculation for W + W − production that does not require an a-posteriori multi-differential reweighting. The evaluation time of the two-loop contribution has been reduced by more than one order of magnitude through a four-dimensional cubic spline interpolation. We find good agreement with the inclusive and fiducial cross sections measured by ATLAS and CMS. Both NNLO corrections and matching to parton showers are important for an accurate simulation of the W + W − signal, and their matching provides the best description of fully exclusive W + W − events to date.https://doi.org/10.1007/JHEP11(2021)230NLO ComputationsQCD Phenomenology |
| spellingShingle | Daniele Lombardi Marius Wiesemann Giulia Zanderighi W + W − production at NNLO+PS with MINNLOPS Journal of High Energy Physics NLO Computations QCD Phenomenology |
| title | W + W − production at NNLO+PS with MINNLOPS |
| title_full | W + W − production at NNLO+PS with MINNLOPS |
| title_fullStr | W + W − production at NNLO+PS with MINNLOPS |
| title_full_unstemmed | W + W − production at NNLO+PS with MINNLOPS |
| title_short | W + W − production at NNLO+PS with MINNLOPS |
| title_sort | w w production at nnlo ps with minnlops |
| topic | NLO Computations QCD Phenomenology |
| url | https://doi.org/10.1007/JHEP11(2021)230 |
| work_keys_str_mv | AT danielelombardi wwproductionatnnlopswithminnlops AT mariuswiesemann wwproductionatnnlopswithminnlops AT giuliazanderighi wwproductionatnnlopswithminnlops |