PanScales parton showers for hadron collisions: formulation and fixed-order studies
Abstract We formulate PanScales parton showers for hadron collisions so as to achieve next-to-leading logarithmic (NLL) accuracy across a broad set of observables. We do so specifically for colour singlet production. Relative to the existing PanScales final-state showers, the main new question is th...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-11-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP11(2022)019 |
| _version_ | 1797865738433724416 |
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| author | Melissa van Beekveld Silvia Ferrario Ravasio Gavin P. Salam Alba Soto-Ontoso Gregory Soyez Rob Verheyen |
| author_facet | Melissa van Beekveld Silvia Ferrario Ravasio Gavin P. Salam Alba Soto-Ontoso Gregory Soyez Rob Verheyen |
| author_sort | Melissa van Beekveld |
| collection | DOAJ |
| description | Abstract We formulate PanScales parton showers for hadron collisions so as to achieve next-to-leading logarithmic (NLL) accuracy across a broad set of observables. We do so specifically for colour singlet production. Relative to the existing PanScales final-state showers, the main new question is that of how to redistribute momentum imbalances from initial-state branching across the remainder of the event. We present tests of the showers at fixed order, including the treatment of full colour for soft-collinear emissions and of spin correlations in both the soft and collinear domains. We also include comparisons to a formulation of a standard dipole shower, the current leading-logarithmic state of the art. A forthcoming companion paper [1] will explore all-order tests of the new showers. |
| first_indexed | 2024-04-09T23:13:00Z |
| format | Article |
| id | doaj.art-576b3df6f212476bbd7e9a1a9a7083f0 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-09T23:13:00Z |
| publishDate | 2022-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-576b3df6f212476bbd7e9a1a9a7083f02023-03-22T10:15:31ZengSpringerOpenJournal of High Energy Physics1029-84792022-11-0120221116510.1007/JHEP11(2022)019PanScales parton showers for hadron collisions: formulation and fixed-order studiesMelissa van Beekveld0Silvia Ferrario Ravasio1Gavin P. Salam2Alba Soto-Ontoso3Gregory Soyez4Rob Verheyen5Rudolf Peierls Centre for Theoretical Physics, Clarendon Laboratory, Parks Road, University of OxfordRudolf Peierls Centre for Theoretical Physics, Clarendon Laboratory, Parks Road, University of OxfordRudolf Peierls Centre for Theoretical Physics, Clarendon Laboratory, Parks Road, University of OxfordUniversité Paris-Saclay, CNRS, CEA, Institut de physique théoriqueUniversité Paris-Saclay, CNRS, CEA, Institut de physique théoriqueDepartment of Physics and Astronomy, University College LondonAbstract We formulate PanScales parton showers for hadron collisions so as to achieve next-to-leading logarithmic (NLL) accuracy across a broad set of observables. We do so specifically for colour singlet production. Relative to the existing PanScales final-state showers, the main new question is that of how to redistribute momentum imbalances from initial-state branching across the remainder of the event. We present tests of the showers at fixed order, including the treatment of full colour for soft-collinear emissions and of spin correlations in both the soft and collinear domains. We also include comparisons to a formulation of a standard dipole shower, the current leading-logarithmic state of the art. A forthcoming companion paper [1] will explore all-order tests of the new showers.https://doi.org/10.1007/JHEP11(2022)019Parton ShowerResummation |
| spellingShingle | Melissa van Beekveld Silvia Ferrario Ravasio Gavin P. Salam Alba Soto-Ontoso Gregory Soyez Rob Verheyen PanScales parton showers for hadron collisions: formulation and fixed-order studies Journal of High Energy Physics Parton Shower Resummation |
| title | PanScales parton showers for hadron collisions: formulation and fixed-order studies |
| title_full | PanScales parton showers for hadron collisions: formulation and fixed-order studies |
| title_fullStr | PanScales parton showers for hadron collisions: formulation and fixed-order studies |
| title_full_unstemmed | PanScales parton showers for hadron collisions: formulation and fixed-order studies |
| title_short | PanScales parton showers for hadron collisions: formulation and fixed-order studies |
| title_sort | panscales parton showers for hadron collisions formulation and fixed order studies |
| topic | Parton Shower Resummation |
| url | https://doi.org/10.1007/JHEP11(2022)019 |
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