Next-to-leading-power kinematic corrections to DVCS: a scalar target
Abstract Using the recent results on the contributions of descendants of the leading twist operators to the operator product expansion of two electromagnetic currents we derive explicit expressions for the kinematic finite-t and target mass corrections to the DVCS helicity amplitudes to the 1/Q 4 po...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-01-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP01(2023)078 |
| _version_ | 1797836712042299392 |
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| author | V. M. Braun Yao Ji A. N. Manashov |
| author_facet | V. M. Braun Yao Ji A. N. Manashov |
| author_sort | V. M. Braun |
| collection | DOAJ |
| description | Abstract Using the recent results on the contributions of descendants of the leading twist operators to the operator product expansion of two electromagnetic currents we derive explicit expressions for the kinematic finite-t and target mass corrections to the DVCS helicity amplitudes to the 1/Q 4 power accuracy. The cancellation of IR divergences for kinematic corrections is demonstrated to all powers in the leading order of perturbation theory. We also argue that target mass corrections in the coherent DVCS from nuclei are small and do not invalidate the factorization theorem. |
| first_indexed | 2024-04-09T15:13:22Z |
| format | Article |
| id | doaj.art-db558198cda14571a3d68f3e49eaf840 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-09T15:13:22Z |
| publishDate | 2023-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-db558198cda14571a3d68f3e49eaf8402023-04-30T11:04:19ZengSpringerOpenJournal of High Energy Physics1029-84792023-01-012023113310.1007/JHEP01(2023)078Next-to-leading-power kinematic corrections to DVCS: a scalar targetV. M. Braun0Yao Ji1A. N. Manashov2Institut für Theoretische Physik, Universität RegensburgPhysik Department T31, James-Franck-Straße 1, Technische Universität MünchenII. Institut für Theoretische Physik, Universität HamburgAbstract Using the recent results on the contributions of descendants of the leading twist operators to the operator product expansion of two electromagnetic currents we derive explicit expressions for the kinematic finite-t and target mass corrections to the DVCS helicity amplitudes to the 1/Q 4 power accuracy. The cancellation of IR divergences for kinematic corrections is demonstrated to all powers in the leading order of perturbation theory. We also argue that target mass corrections in the coherent DVCS from nuclei are small and do not invalidate the factorization theorem.https://doi.org/10.1007/JHEP01(2023)078Properties of HadronsSpecific QCD Phenomenology |
| spellingShingle | V. M. Braun Yao Ji A. N. Manashov Next-to-leading-power kinematic corrections to DVCS: a scalar target Journal of High Energy Physics Properties of Hadrons Specific QCD Phenomenology |
| title | Next-to-leading-power kinematic corrections to DVCS: a scalar target |
| title_full | Next-to-leading-power kinematic corrections to DVCS: a scalar target |
| title_fullStr | Next-to-leading-power kinematic corrections to DVCS: a scalar target |
| title_full_unstemmed | Next-to-leading-power kinematic corrections to DVCS: a scalar target |
| title_short | Next-to-leading-power kinematic corrections to DVCS: a scalar target |
| title_sort | next to leading power kinematic corrections to dvcs a scalar target |
| topic | Properties of Hadrons Specific QCD Phenomenology |
| url | https://doi.org/10.1007/JHEP01(2023)078 |
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