A general algorithm to build real-radiation antenna functions for higher-order calculations
Abstract The antenna subtraction method has been successfully applied to a wide range of processes relevant for the Large Hadron Collider at next-to-next-to-leading order in α s (NNLO). We propose an algorithm for building antenna functions for any number of real emissions from an identified pair of...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-06-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP06(2023)065 |
| _version_ | 1797675850171154432 |
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| author | Oscar Braun-White Nigel Glover Christian T Preuss |
| author_facet | Oscar Braun-White Nigel Glover Christian T Preuss |
| author_sort | Oscar Braun-White |
| collection | DOAJ |
| description | Abstract The antenna subtraction method has been successfully applied to a wide range of processes relevant for the Large Hadron Collider at next-to-next-to-leading order in α s (NNLO). We propose an algorithm for building antenna functions for any number of real emissions from an identified pair of hard radiator partons directly from a specified list of unresolved limits. We use the algorithm to explicitly build all single- and double-real QCD antenna functions and compare them to the previous antenna functions, which were extracted from matrix elements. The improved antenna functions should be more easily applicable to NNLO subtraction terms. Finally, we match the integration of the antenna functions over the final-final unresolved phase space to the previous incarnation, serving as an independent check on our results. |
| first_indexed | 2024-03-11T22:20:35Z |
| format | Article |
| id | doaj.art-19f33f0d67a4474882d3142d4f672d29 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-03-11T22:20:35Z |
| publishDate | 2023-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-19f33f0d67a4474882d3142d4f672d292023-09-24T11:05:14ZengSpringerOpenJournal of High Energy Physics1029-84792023-06-012023615610.1007/JHEP06(2023)065A general algorithm to build real-radiation antenna functions for higher-order calculationsOscar Braun-White0Nigel Glover1Christian T Preuss2Institute for Particle Physics Phenomenology, Department of Physics, Durham UniversityInstitute for Particle Physics Phenomenology, Department of Physics, Durham UniversityInstitute for Theoretical Physics, ETHAbstract The antenna subtraction method has been successfully applied to a wide range of processes relevant for the Large Hadron Collider at next-to-next-to-leading order in α s (NNLO). We propose an algorithm for building antenna functions for any number of real emissions from an identified pair of hard radiator partons directly from a specified list of unresolved limits. We use the algorithm to explicitly build all single- and double-real QCD antenna functions and compare them to the previous antenna functions, which were extracted from matrix elements. The improved antenna functions should be more easily applicable to NNLO subtraction terms. Finally, we match the integration of the antenna functions over the final-final unresolved phase space to the previous incarnation, serving as an independent check on our results.https://doi.org/10.1007/JHEP06(2023)065Higher-Order Perturbative CalculationsParton Shower |
| spellingShingle | Oscar Braun-White Nigel Glover Christian T Preuss A general algorithm to build real-radiation antenna functions for higher-order calculations Journal of High Energy Physics Higher-Order Perturbative Calculations Parton Shower |
| title | A general algorithm to build real-radiation antenna functions for higher-order calculations |
| title_full | A general algorithm to build real-radiation antenna functions for higher-order calculations |
| title_fullStr | A general algorithm to build real-radiation antenna functions for higher-order calculations |
| title_full_unstemmed | A general algorithm to build real-radiation antenna functions for higher-order calculations |
| title_short | A general algorithm to build real-radiation antenna functions for higher-order calculations |
| title_sort | general algorithm to build real radiation antenna functions for higher order calculations |
| topic | Higher-Order Perturbative Calculations Parton Shower |
| url | https://doi.org/10.1007/JHEP06(2023)065 |
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