Local analytic sector subtraction for initial- and final-state radiation at NLO in massless QCD
Abstract Within the framework of local analytic sector subtraction, we present the subtraction of next-to-leading-order QCD singularities for processes featuring massless coloured particles in the initial as well as in the final state. The features of the method are explained in detail, including th...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-12-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP12(2022)042 |
| _version_ | 1797860058196869120 |
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| author | Gloria Bertolotti Paolo Torrielli Sandro Uccirati Marco Zaro |
| author_facet | Gloria Bertolotti Paolo Torrielli Sandro Uccirati Marco Zaro |
| author_sort | Gloria Bertolotti |
| collection | DOAJ |
| description | Abstract Within the framework of local analytic sector subtraction, we present the subtraction of next-to-leading-order QCD singularities for processes featuring massless coloured particles in the initial as well as in the final state. The features of the method are explained in detail, including the introduction of an optimisation procedure aiming at improving numerical stability at the cost of no extra analytic complexity. A numerical validation is provided for a variety of processes relevant to lepton as well as hadron colliders. This work constitutes a relevant step in view of the application of our subtraction method to processes involving initial-state radiation at next-to-next-to-leading order in QCD. |
| first_indexed | 2024-04-09T21:40:45Z |
| format | Article |
| id | doaj.art-f4813091145c4544a44d4a54d00ca2c6 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-09T21:40:45Z |
| publishDate | 2022-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-f4813091145c4544a44d4a54d00ca2c62023-03-26T11:04:59ZengSpringerOpenJournal of High Energy Physics1029-84792022-12-0120221214710.1007/JHEP12(2022)042Local analytic sector subtraction for initial- and final-state radiation at NLO in massless QCDGloria Bertolotti0Paolo Torrielli1Sandro Uccirati2Marco Zaro3Dipartimento di Fisica, Università di Torino and INFN, Sezione di TorinoDipartimento di Fisica, Università di Torino and INFN, Sezione di TorinoDipartimento di Fisica, Università di Torino and INFN, Sezione di TorinoTIF Lab, Università di Milano and INFN, Sezione di MilanoAbstract Within the framework of local analytic sector subtraction, we present the subtraction of next-to-leading-order QCD singularities for processes featuring massless coloured particles in the initial as well as in the final state. The features of the method are explained in detail, including the introduction of an optimisation procedure aiming at improving numerical stability at the cost of no extra analytic complexity. A numerical validation is provided for a variety of processes relevant to lepton as well as hadron colliders. This work constitutes a relevant step in view of the application of our subtraction method to processes involving initial-state radiation at next-to-next-to-leading order in QCD.https://doi.org/10.1007/JHEP12(2022)042Higher-Order Perturbative CalculationsSpecific QCD Phenomenology |
| spellingShingle | Gloria Bertolotti Paolo Torrielli Sandro Uccirati Marco Zaro Local analytic sector subtraction for initial- and final-state radiation at NLO in massless QCD Journal of High Energy Physics Higher-Order Perturbative Calculations Specific QCD Phenomenology |
| title | Local analytic sector subtraction for initial- and final-state radiation at NLO in massless QCD |
| title_full | Local analytic sector subtraction for initial- and final-state radiation at NLO in massless QCD |
| title_fullStr | Local analytic sector subtraction for initial- and final-state radiation at NLO in massless QCD |
| title_full_unstemmed | Local analytic sector subtraction for initial- and final-state radiation at NLO in massless QCD |
| title_short | Local analytic sector subtraction for initial- and final-state radiation at NLO in massless QCD |
| title_sort | local analytic sector subtraction for initial and final state radiation at nlo in massless qcd |
| topic | Higher-Order Perturbative Calculations Specific QCD Phenomenology |
| url | https://doi.org/10.1007/JHEP12(2022)042 |
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