MiNNLOPS: a new method to match NNLO QCD to parton showers
Abstract We present a novel method to combine QCD calculations at next-to-next-to-leading order (NNLO) with parton shower (PS) simulations, that can be applied to the production of heavy systems in hadronic collisions, such as colour singlets or a t t ¯ $$ t\overline{t} $$ pair. The NNLO corrections...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-05-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP05(2020)143 |
| _version_ | 1811340988511158272 |
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| author | Pier Francesco Monni Paolo Nason Emanuele Re Marius Wiesemann Giulia Zanderighi |
| author_facet | Pier Francesco Monni Paolo Nason Emanuele Re Marius Wiesemann Giulia Zanderighi |
| author_sort | Pier Francesco Monni |
| collection | DOAJ |
| description | Abstract We present a novel method to combine QCD calculations at next-to-next-to-leading order (NNLO) with parton shower (PS) simulations, that can be applied to the production of heavy systems in hadronic collisions, such as colour singlets or a t t ¯ $$ t\overline{t} $$ pair. The NNLO corrections are included by connecting the MiNLO′ method with transverse- momentum resummation, and they are calculated at generation time without any additional reweighting, making the algorithm considerably efficient. Moreover, the combination of different jet multiplicities does not require any unphysical merging scale, and the matching preserves the structure of the leading logarithmic corrections of the Monte Carlo simulation for parton showers ordered in transverse momentum. We present proof-of-concept applications to hadronic Higgs production and the Drell-Yan process at the LHC. |
| first_indexed | 2024-04-13T18:49:58Z |
| format | Article |
| id | doaj.art-90c479af62854ade9a1e362c9817b1e5 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-13T18:49:58Z |
| publishDate | 2020-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-90c479af62854ade9a1e362c9817b1e52022-12-22T02:34:27ZengSpringerOpenJournal of High Energy Physics1029-84792020-05-012020514510.1007/JHEP05(2020)143MiNNLOPS: a new method to match NNLO QCD to parton showersPier Francesco Monni0Paolo Nason1Emanuele Re2Marius Wiesemann3Giulia Zanderighi4Theoretical Physics Department, CERNUniversità di Milano - Bicocca and INFN, Sezione di Milano – BicoccaTheoretical Physics Department, CERNTheoretical Physics Department, CERNMax-Planck-Institut für PhysikAbstract We present a novel method to combine QCD calculations at next-to-next-to-leading order (NNLO) with parton shower (PS) simulations, that can be applied to the production of heavy systems in hadronic collisions, such as colour singlets or a t t ¯ $$ t\overline{t} $$ pair. The NNLO corrections are included by connecting the MiNLO′ method with transverse- momentum resummation, and they are calculated at generation time without any additional reweighting, making the algorithm considerably efficient. Moreover, the combination of different jet multiplicities does not require any unphysical merging scale, and the matching preserves the structure of the leading logarithmic corrections of the Monte Carlo simulation for parton showers ordered in transverse momentum. We present proof-of-concept applications to hadronic Higgs production and the Drell-Yan process at the LHC.http://link.springer.com/article/10.1007/JHEP05(2020)143Perturbative QCDResummation |
| spellingShingle | Pier Francesco Monni Paolo Nason Emanuele Re Marius Wiesemann Giulia Zanderighi MiNNLOPS: a new method to match NNLO QCD to parton showers Journal of High Energy Physics Perturbative QCD Resummation |
| title | MiNNLOPS: a new method to match NNLO QCD to parton showers |
| title_full | MiNNLOPS: a new method to match NNLO QCD to parton showers |
| title_fullStr | MiNNLOPS: a new method to match NNLO QCD to parton showers |
| title_full_unstemmed | MiNNLOPS: a new method to match NNLO QCD to parton showers |
| title_short | MiNNLOPS: a new method to match NNLO QCD to parton showers |
| title_sort | minnlops a new method to match nnlo qcd to parton showers |
| topic | Perturbative QCD Resummation |
| url | http://link.springer.com/article/10.1007/JHEP05(2020)143 |
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