Next-to-leading power threshold effects for inclusive and exclusive processes with final state jets
Abstract It is well known that cross-sections in perturbative QCD receive large corrections from soft and collinear radiation, which can be resummed to all orders in the coupling. Whether or not the universal properties of this radiation can be extended to next-to-leading power (NLP) in the threshol...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-03-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP03(2020)106 |
| _version_ | 1819017767418855424 |
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| author | Melissa van Beekveld Wim Beenakker Eric Laenen Chris D. White |
| author_facet | Melissa van Beekveld Wim Beenakker Eric Laenen Chris D. White |
| author_sort | Melissa van Beekveld |
| collection | DOAJ |
| description | Abstract It is well known that cross-sections in perturbative QCD receive large corrections from soft and collinear radiation, which can be resummed to all orders in the coupling. Whether or not the universal properties of this radiation can be extended to next-to-leading power (NLP) in the threshold expansion has been the subject of much recent study. In particular, universal forms for next-to-leading order (NLO) cross-sections have been obtained for general colour-singlet production processes by considering only the emission of gluons. In this paper, we extend such formulae to processes containing final state jets, and show that the dominant NLP terms at NLO can be obtained using a similar prescription to the colour-singlet case. We furthermore consider the emission of soft quarks, which also leads to a class of universal NLP contributions at NLO. We illustrate our results using three different processes at NLO: deep-inelastic scattering, hadroproduction via electron-positron annihilation and prompt photon production. |
| first_indexed | 2024-12-21T03:08:45Z |
| format | Article |
| id | doaj.art-20c05bd72b5d42fc8e419f95cea32323 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-21T03:08:45Z |
| publishDate | 2020-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-20c05bd72b5d42fc8e419f95cea323232022-12-21T19:18:02ZengSpringerOpenJournal of High Energy Physics1029-84792020-03-012020314110.1007/JHEP03(2020)106Next-to-leading power threshold effects for inclusive and exclusive processes with final state jetsMelissa van Beekveld0Wim Beenakker1Eric Laenen2Chris D. White3Theoretical High Energy Physics, Radboud UniversityTheoretical High Energy Physics, Radboud UniversityNikhefCentre for Research in String Theory, School of Physics and Astronomy, Queen Mary University of LondonAbstract It is well known that cross-sections in perturbative QCD receive large corrections from soft and collinear radiation, which can be resummed to all orders in the coupling. Whether or not the universal properties of this radiation can be extended to next-to-leading power (NLP) in the threshold expansion has been the subject of much recent study. In particular, universal forms for next-to-leading order (NLO) cross-sections have been obtained for general colour-singlet production processes by considering only the emission of gluons. In this paper, we extend such formulae to processes containing final state jets, and show that the dominant NLP terms at NLO can be obtained using a similar prescription to the colour-singlet case. We furthermore consider the emission of soft quarks, which also leads to a class of universal NLP contributions at NLO. We illustrate our results using three different processes at NLO: deep-inelastic scattering, hadroproduction via electron-positron annihilation and prompt photon production.http://link.springer.com/article/10.1007/JHEP03(2020)106ResummationPerturbative QCD |
| spellingShingle | Melissa van Beekveld Wim Beenakker Eric Laenen Chris D. White Next-to-leading power threshold effects for inclusive and exclusive processes with final state jets Journal of High Energy Physics Resummation Perturbative QCD |
| title | Next-to-leading power threshold effects for inclusive and exclusive processes with final state jets |
| title_full | Next-to-leading power threshold effects for inclusive and exclusive processes with final state jets |
| title_fullStr | Next-to-leading power threshold effects for inclusive and exclusive processes with final state jets |
| title_full_unstemmed | Next-to-leading power threshold effects for inclusive and exclusive processes with final state jets |
| title_short | Next-to-leading power threshold effects for inclusive and exclusive processes with final state jets |
| title_sort | next to leading power threshold effects for inclusive and exclusive processes with final state jets |
| topic | Resummation Perturbative QCD |
| url | http://link.springer.com/article/10.1007/JHEP03(2020)106 |
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